138721280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 192

約数和(自身を含む): 377395200

約数和(自身を除く): 238673920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 31, 32, 38, 40, 46, 62, 64, 76, 80, 92, 95, 115, 124, 128, 152, 155, 160, 184, 190, 230, 248, 256, 304, 310, 320, 368, 380, 437, 460, 496, 512, 589, 608, 620, 640, 713, 736, 760, 874, 920, 992, 1024, 1178, 1216, 1240, 1280, 1426, 1472, 1520, 1748, 1840, 1984, 2048, 2185, 2356, 2432, 2480, 2560, 2852, 2944, 2945, 3040, 3496, 3565, 3680, 3968, 4370, 4712, 4864, 4960, 5120, 5704, 5888, 5890, 6080, 6992, 7130, 7360, 7936, 8740, 9424, 9728, 9920, 10240, 11408, 11776, 11780, 12160, 13547, 13984, 14260, 14720, 15872, 17480, 18848, 19456, 19840, 22816, 23552, 23560, 24320, 27094, 27968, 28520, 29440, 31744, 34960, 37696, 38912, 39680, 45632, 47104, 47120, 48640, 54188, 55936, 57040, 58880, 63488, 67735, 69920, 75392, 79360, 91264, 94240, 97280, 108376, 111872, 114080, 117760, 135470, 139840, 150784, 158720, 182528, 188480, 194560, 216752, 223744, 228160, 235520, 270940, 279680, 301568, 317440, 365056, 376960, 433504, 447488, 456320, 541880, 559360, 603136, 730112, 753920, 867008, 894976, 912640, 1083760, 1118720, 1206272, 1460224, 1507840, 1734016, 1825280, 2167520, 2237440, 3015680, 3468032, 3650560, 4335040, 4474880, 6031360, 6936064, 7301120, 8670080, 13872128, 17340160, 27744256, 34680320, 69360640, 138721280]

約数ペア:

[(1, 138721280), (2, 69360640), (4, 34680320), (5, 27744256), (8, 17340160), (10, 13872128), (16, 8670080), (19, 7301120), (20, 6936064), (23, 6031360), (31, 4474880), (32, 4335040), (38, 3650560), (40, 3468032), (46, 3015680), (62, 2237440), (64, 2167520), (76, 1825280), (80, 1734016), (92, 1507840), (95, 1460224), (115, 1206272), (124, 1118720), (128, 1083760), (152, 912640), (155, 894976), (160, 867008), (184, 753920), (190, 730112), (230, 603136), (248, 559360), (256, 541880), (304, 456320), (310, 447488), (320, 433504), (368, 376960), (380, 365056), (437, 317440), (460, 301568), (496, 279680), (512, 270940), (589, 235520), (608, 228160), (620, 223744), (640, 216752), (713, 194560), (736, 188480), (760, 182528), (874, 158720), (920, 150784), (992, 139840), (1024, 135470), (1178, 117760), (1216, 114080), (1240, 111872), (1280, 108376), (1426, 97280), (1472, 94240), (1520, 91264), (1748, 79360), (1840, 75392), (1984, 69920), (2048, 67735), (2185, 63488), (2356, 58880), (2432, 57040), (2480, 55936), (2560, 54188), (2852, 48640), (2944, 47120), (2945, 47104), (3040, 45632), (3496, 39680), (3565, 38912), (3680, 37696), (3968, 34960), (4370, 31744), (4712, 29440), (4864, 28520), (4960, 27968), (5120, 27094), (5704, 24320), (5888, 23560), (5890, 23552), (6080, 22816), (6992, 19840), (7130, 19456), (7360, 18848), (7936, 17480), (8740, 15872), (9424, 14720), (9728, 14260), (9920, 13984), (10240, 13547), (11408, 12160), (11776, 11780)]