1618240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:419

約数の個数: 56

約数和(自身を含む): 4160520

約数和(自身を除く): 2542280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 389, 416, 520, 778, 832, 1040, 1556, 1945, 2080, 3112, 3890, 4160, 5057, 6224, 7780, 10114, 12448, 15560, 20228, 24896, 25285, 31120, 40456, 50570, 62240, 80912, 101140, 124480, 161824, 202280, 323648, 404560, 809120, 1618240]

約数ペア:

[(1, 1618240), (2, 809120), (4, 404560), (5, 323648), (8, 202280), (10, 161824), (13, 124480), (16, 101140), (20, 80912), (26, 62240), (32, 50570), (40, 40456), (52, 31120), (64, 25285), (65, 24896), (80, 20228), (104, 15560), (130, 12448), (160, 10114), (208, 7780), (260, 6224), (320, 5057), (389, 4160), (416, 3890), (520, 3112), (778, 2080), (832, 1945), (1040, 1556)]