210520920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{7867}}^1$

素因数の和:8104

約数の個数: 64

約数和(自身を含む): 634475520

約数和(自身を除く): 423954600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 223, 446, 669, 892, 1115, 1338, 1784, 2230, 2676, 3345, 4460, 5352, 6690, 7867, 8920, 13380, 15734, 23601, 26760, 31468, 39335, 47202, 62936, 78670, 94404, 118005, 157340, 188808, 236010, 314680, 472020, 944040, 1754341, 3508682, 5263023, 7017364, 8771705, 10526046, 14034728, 17543410, 21052092, 26315115, 35086820, 42104184, 52630230, 70173640, 105260460, 210520920]

約数ペア:

[(1, 210520920), (2, 105260460), (3, 70173640), (4, 52630230), (5, 42104184), (6, 35086820), (8, 26315115), (10, 21052092), (12, 17543410), (15, 14034728), (20, 10526046), (24, 8771705), (30, 7017364), (40, 5263023), (60, 3508682), (120, 1754341), (223, 944040), (446, 472020), (669, 314680), (892, 236010), (1115, 188808), (1338, 157340), (1784, 118005), (2230, 94404), (2676, 78670), (3345, 62936), (4460, 47202), (5352, 39335), (6690, 31468), (7867, 26760), (8920, 23601), (13380, 15734)]