813440000

素因数分解:

$2^{10}\times 5^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 220

約数和(自身を含む): 2148662208

約数和(自身を除く): 1335222208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 41, 50, 62, 64, 80, 82, 100, 124, 125, 128, 155, 160, 164, 200, 205, 248, 250, 256, 310, 320, 328, 400, 410, 496, 500, 512, 620, 625, 640, 656, 775, 800, 820, 992, 1000, 1024, 1025, 1240, 1250, 1271, 1280, 1312, 1550, 1600, 1640, 1984, 2000, 2050, 2480, 2500, 2542, 2560, 2624, 3100, 3200, 3280, 3875, 3968, 4000, 4100, 4960, 5000, 5084, 5120, 5125, 5248, 6200, 6355, 6400, 6560, 7750, 7936, 8000, 8200, 9920, 10000, 10168, 10250, 10496, 12400, 12710, 12800, 13120, 15500, 15872, 16000, 16400, 19375, 19840, 20000, 20336, 20500, 20992, 24800, 25420, 25600, 25625, 26240, 31000, 31744, 31775, 32000, 32800, 38750, 39680, 40000, 40672, 41000, 41984, 49600, 50840, 51250, 52480, 62000, 63550, 64000, 65600, 77500, 79360, 80000, 81344, 82000, 99200, 101680, 102500, 104960, 124000, 127100, 128000, 131200, 155000, 158720, 158875, 160000, 162688, 164000, 198400, 203360, 205000, 209920, 248000, 254200, 262400, 310000, 317750, 320000, 325376, 328000, 396800, 406720, 410000, 496000, 508400, 524800, 620000, 635500, 640000, 650752, 656000, 793600, 794375, 813440, 820000, 992000, 1016800, 1049600, 1240000, 1271000, 1301504, 1312000, 1588750, 1626880, 1640000, 1984000, 2033600, 2480000, 2542000, 2624000, 3177500, 3253760, 3280000, 3968000, 4067200, 4960000, 5084000, 5248000, 6355000, 6507520, 6560000, 8134400, 9920000, 10168000, 12710000, 13120000, 16268800, 19840000, 20336000, 25420000, 26240000, 32537600, 40672000, 50840000, 81344000, 101680000, 162688000, 203360000, 406720000, 813440000]

約数ペア:

[(1, 813440000), (2, 406720000), (4, 203360000), (5, 162688000), (8, 101680000), (10, 81344000), (16, 50840000), (20, 40672000), (25, 32537600), (31, 26240000), (32, 25420000), (40, 20336000), (41, 19840000), (50, 16268800), (62, 13120000), (64, 12710000), (80, 10168000), (82, 9920000), (100, 8134400), (124, 6560000), (125, 6507520), (128, 6355000), (155, 5248000), (160, 5084000), (164, 4960000), (200, 4067200), (205, 3968000), (248, 3280000), (250, 3253760), (256, 3177500), (310, 2624000), (320, 2542000), (328, 2480000), (400, 2033600), (410, 1984000), (496, 1640000), (500, 1626880), (512, 1588750), (620, 1312000), (625, 1301504), (640, 1271000), (656, 1240000), (775, 1049600), (800, 1016800), (820, 992000), (992, 820000), (1000, 813440), (1024, 794375), (1025, 793600), (1240, 656000), (1250, 650752), (1271, 640000), (1280, 635500), (1312, 620000), (1550, 524800), (1600, 508400), (1640, 496000), (1984, 410000), (2000, 406720), (2050, 396800), (2480, 328000), (2500, 325376), (2542, 320000), (2560, 317750), (2624, 310000), (3100, 262400), (3200, 254200), (3280, 248000), (3875, 209920), (3968, 205000), (4000, 203360), (4100, 198400), (4960, 164000), (5000, 162688), (5084, 160000), (5120, 158875), (5125, 158720), (5248, 155000), (6200, 131200), (6355, 128000), (6400, 127100), (6560, 124000), (7750, 104960), (7936, 102500), (8000, 101680), (8200, 99200), (9920, 82000), (10000, 81344), (10168, 80000), (10250, 79360), (10496, 77500), (12400, 65600), (12710, 64000), (12800, 63550), (13120, 62000), (15500, 52480), (15872, 51250), (16000, 50840), (16400, 49600), (19375, 41984), (19840, 41000), (20000, 40672), (20336, 40000), (20500, 39680), (20992, 38750), (24800, 32800), (25420, 32000), (25600, 31775), (25625, 31744), (26240, 31000)]