550156280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{631}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 1261370880

約数和(自身を除く): 711214600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 307, 355, 568, 614, 631, 710, 1228, 1262, 1420, 1535, 2456, 2524, 2840, 3070, 3155, 5048, 6140, 6310, 12280, 12620, 21797, 25240, 43594, 44801, 87188, 89602, 108985, 174376, 179204, 193717, 217970, 224005, 358408, 387434, 435940, 448010, 774868, 871880, 896020, 968585, 1549736, 1792040, 1937170, 3874340, 7748680, 13753907, 27507814, 55015628, 68769535, 110031256, 137539070, 275078140, 550156280]

約数ペア:

[(1, 550156280), (2, 275078140), (4, 137539070), (5, 110031256), (8, 68769535), (10, 55015628), (20, 27507814), (40, 13753907), (71, 7748680), (142, 3874340), (284, 1937170), (307, 1792040), (355, 1549736), (568, 968585), (614, 896020), (631, 871880), (710, 774868), (1228, 448010), (1262, 435940), (1420, 387434), (1535, 358408), (2456, 224005), (2524, 217970), (2840, 193717), (3070, 179204), (3155, 174376), (5048, 108985), (6140, 89602), (6310, 87188), (12280, 44801), (12620, 43594), (21797, 25240)]