15981472

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 34747272

約数和(自身を除く): 18765800

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 208, 328, 416, 533, 656, 937, 1066, 1312, 1874, 2132, 3748, 4264, 7496, 8528, 12181, 14992, 17056, 24362, 29984, 38417, 48724, 76834, 97448, 153668, 194896, 307336, 389792, 499421, 614672, 998842, 1229344, 1997684, 3995368, 7990736, 15981472]

約数ペア:

[(1, 15981472), (2, 7990736), (4, 3995368), (8, 1997684), (13, 1229344), (16, 998842), (26, 614672), (32, 499421), (41, 389792), (52, 307336), (82, 194896), (104, 153668), (164, 97448), (208, 76834), (328, 48724), (416, 38417), (533, 29984), (656, 24362), (937, 17056), (1066, 14992), (1312, 12181), (1874, 8528), (2132, 7496), (3748, 4264)]