213497000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 528353280

約数和(自身を除く): 314856280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 71, 97, 100, 124, 125, 142, 155, 194, 200, 248, 250, 284, 310, 355, 388, 485, 500, 568, 620, 710, 775, 776, 970, 1000, 1240, 1420, 1550, 1775, 1940, 2201, 2425, 2840, 3007, 3100, 3550, 3875, 3880, 4402, 4850, 6014, 6200, 6887, 7100, 7750, 8804, 8875, 9700, 11005, 12028, 12125, 13774, 14200, 15035, 15500, 17608, 17750, 19400, 22010, 24056, 24250, 27548, 30070, 31000, 34435, 35500, 44020, 48500, 55025, 55096, 60140, 68870, 71000, 75175, 88040, 97000, 110050, 120280, 137740, 150350, 172175, 213497, 220100, 275125, 275480, 300700, 344350, 375875, 426994, 440200, 550250, 601400, 688700, 751750, 853988, 860875, 1067485, 1100500, 1377400, 1503500, 1707976, 1721750, 2134970, 2201000, 3007000, 3443500, 4269940, 5337425, 6887000, 8539880, 10674850, 21349700, 26687125, 42699400, 53374250, 106748500, 213497000]

約数ペア:

[(1, 213497000), (2, 106748500), (4, 53374250), (5, 42699400), (8, 26687125), (10, 21349700), (20, 10674850), (25, 8539880), (31, 6887000), (40, 5337425), (50, 4269940), (62, 3443500), (71, 3007000), (97, 2201000), (100, 2134970), (124, 1721750), (125, 1707976), (142, 1503500), (155, 1377400), (194, 1100500), (200, 1067485), (248, 860875), (250, 853988), (284, 751750), (310, 688700), (355, 601400), (388, 550250), (485, 440200), (500, 426994), (568, 375875), (620, 344350), (710, 300700), (775, 275480), (776, 275125), (970, 220100), (1000, 213497), (1240, 172175), (1420, 150350), (1550, 137740), (1775, 120280), (1940, 110050), (2201, 97000), (2425, 88040), (2840, 75175), (3007, 71000), (3100, 68870), (3550, 60140), (3875, 55096), (3880, 55025), (4402, 48500), (4850, 44020), (6014, 35500), (6200, 34435), (6887, 31000), (7100, 30070), (7750, 27548), (8804, 24250), (8875, 24056), (9700, 22010), (11005, 19400), (12028, 17750), (12125, 17608), (13774, 15500), (14200, 15035)]