1398400000

素因数分解:

$2^{10}\times 5^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:87

約数の個数: 264

約数和(自身を含む): 3837879360

約数和(自身を除く): 2439479360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 25, 32, 38, 40, 46, 50, 64, 76, 80, 92, 95, 100, 115, 125, 128, 152, 160, 184, 190, 200, 230, 250, 256, 304, 320, 368, 380, 400, 437, 460, 475, 500, 512, 575, 608, 625, 640, 736, 760, 800, 874, 920, 950, 1000, 1024, 1150, 1216, 1250, 1280, 1472, 1520, 1600, 1748, 1840, 1900, 2000, 2185, 2300, 2375, 2432, 2500, 2560, 2875, 2944, 3040, 3125, 3200, 3496, 3680, 3800, 4000, 4370, 4600, 4750, 4864, 5000, 5120, 5750, 5888, 6080, 6250, 6400, 6992, 7360, 7600, 8000, 8740, 9200, 9500, 9728, 10000, 10925, 11500, 11776, 11875, 12160, 12500, 12800, 13984, 14375, 14720, 15200, 16000, 17480, 18400, 19000, 19456, 20000, 21850, 23000, 23552, 23750, 24320, 25000, 25600, 27968, 28750, 29440, 30400, 32000, 34960, 36800, 38000, 40000, 43700, 46000, 47500, 48640, 50000, 54625, 55936, 57500, 58880, 59375, 60800, 64000, 69920, 71875, 73600, 76000, 80000, 87400, 92000, 95000, 97280, 100000, 109250, 111872, 115000, 117760, 118750, 121600, 128000, 139840, 143750, 147200, 152000, 160000, 174800, 184000, 190000, 200000, 218500, 223744, 230000, 237500, 243200, 273125, 279680, 287500, 294400, 304000, 320000, 349600, 368000, 380000, 400000, 437000, 447488, 460000, 475000, 486400, 546250, 559360, 575000, 588800, 608000, 640000, 699200, 736000, 760000, 800000, 874000, 920000, 950000, 1092500, 1118720, 1150000, 1216000, 1365625, 1398400, 1472000, 1520000, 1600000, 1748000, 1840000, 1900000, 2185000, 2237440, 2300000, 2432000, 2731250, 2796800, 2944000, 3040000, 3200000, 3496000, 3680000, 3800000, 4370000, 4600000, 5462500, 5593600, 6080000, 6992000, 7360000, 7600000, 8740000, 9200000, 10925000, 11187200, 12160000, 13984000, 14720000, 15200000, 17480000, 18400000, 21850000, 27968000, 30400000, 34960000, 36800000, 43700000, 55936000, 60800000, 69920000, 73600000, 87400000, 139840000, 174800000, 279680000, 349600000, 699200000, 1398400000]

約数ペア:

[(1, 1398400000), (2, 699200000), (4, 349600000), (5, 279680000), (8, 174800000), (10, 139840000), (16, 87400000), (19, 73600000), (20, 69920000), (23, 60800000), (25, 55936000), (32, 43700000), (38, 36800000), (40, 34960000), (46, 30400000), (50, 27968000), (64, 21850000), (76, 18400000), (80, 17480000), (92, 15200000), (95, 14720000), (100, 13984000), (115, 12160000), (125, 11187200), (128, 10925000), (152, 9200000), (160, 8740000), (184, 7600000), (190, 7360000), (200, 6992000), (230, 6080000), (250, 5593600), (256, 5462500), (304, 4600000), (320, 4370000), (368, 3800000), (380, 3680000), (400, 3496000), (437, 3200000), (460, 3040000), (475, 2944000), (500, 2796800), (512, 2731250), (575, 2432000), (608, 2300000), (625, 2237440), (640, 2185000), (736, 1900000), (760, 1840000), (800, 1748000), (874, 1600000), (920, 1520000), (950, 1472000), (1000, 1398400), (1024, 1365625), (1150, 1216000), (1216, 1150000), (1250, 1118720), (1280, 1092500), (1472, 950000), (1520, 920000), (1600, 874000), (1748, 800000), (1840, 760000), (1900, 736000), (2000, 699200), (2185, 640000), (2300, 608000), (2375, 588800), (2432, 575000), (2500, 559360), (2560, 546250), (2875, 486400), (2944, 475000), (3040, 460000), (3125, 447488), (3200, 437000), (3496, 400000), (3680, 380000), (3800, 368000), (4000, 349600), (4370, 320000), (4600, 304000), (4750, 294400), (4864, 287500), (5000, 279680), (5120, 273125), (5750, 243200), (5888, 237500), (6080, 230000), (6250, 223744), (6400, 218500), (6992, 200000), (7360, 190000), (7600, 184000), (8000, 174800), (8740, 160000), (9200, 152000), (9500, 147200), (9728, 143750), (10000, 139840), (10925, 128000), (11500, 121600), (11776, 118750), (11875, 117760), (12160, 115000), (12500, 111872), (12800, 109250), (13984, 100000), (14375, 97280), (14720, 95000), (15200, 92000), (16000, 87400), (17480, 80000), (18400, 76000), (19000, 73600), (19456, 71875), (20000, 69920), (21850, 64000), (23000, 60800), (23552, 59375), (23750, 58880), (24320, 57500), (25000, 55936), (25600, 54625), (27968, 50000), (28750, 48640), (29440, 47500), (30400, 46000), (32000, 43700), (34960, 40000), (36800, 38000)]