19905472

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 56

約数和(自身を含む): 41615360

約数和(自身を除く): 21709888

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 127, 158, 248, 254, 316, 496, 508, 632, 992, 1016, 1264, 1984, 2032, 2449, 2528, 3937, 4064, 4898, 5056, 7874, 8128, 9796, 10033, 15748, 19592, 20066, 31496, 39184, 40132, 62992, 78368, 80264, 125984, 156736, 160528, 251968, 311023, 321056, 622046, 642112, 1244092, 2488184, 4976368, 9952736, 19905472]

約数ペア:

[(1, 19905472), (2, 9952736), (4, 4976368), (8, 2488184), (16, 1244092), (31, 642112), (32, 622046), (62, 321056), (64, 311023), (79, 251968), (124, 160528), (127, 156736), (158, 125984), (248, 80264), (254, 78368), (316, 62992), (496, 40132), (508, 39184), (632, 31496), (992, 20066), (1016, 19592), (1264, 15748), (1984, 10033), (2032, 9796), (2449, 8128), (2528, 7874), (3937, 5056), (4064, 4898)]