25731680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 66679200

約数和(自身を除く): 40947520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 89, 104, 130, 139, 160, 178, 208, 260, 278, 356, 416, 445, 520, 556, 695, 712, 890, 1040, 1112, 1157, 1390, 1424, 1780, 1807, 2080, 2224, 2314, 2780, 2848, 3560, 3614, 4448, 4628, 5560, 5785, 7120, 7228, 9035, 9256, 11120, 11570, 12371, 14240, 14456, 18070, 18512, 22240, 23140, 24742, 28912, 36140, 37024, 46280, 49484, 57824, 61855, 72280, 92560, 98968, 123710, 144560, 160823, 185120, 197936, 247420, 289120, 321646, 395872, 494840, 643292, 804115, 989680, 1286584, 1608230, 1979360, 2573168, 3216460, 5146336, 6432920, 12865840, 25731680]

約数ペア:

[(1, 25731680), (2, 12865840), (4, 6432920), (5, 5146336), (8, 3216460), (10, 2573168), (13, 1979360), (16, 1608230), (20, 1286584), (26, 989680), (32, 804115), (40, 643292), (52, 494840), (65, 395872), (80, 321646), (89, 289120), (104, 247420), (130, 197936), (139, 185120), (160, 160823), (178, 144560), (208, 123710), (260, 98968), (278, 92560), (356, 72280), (416, 61855), (445, 57824), (520, 49484), (556, 46280), (695, 37024), (712, 36140), (890, 28912), (1040, 24742), (1112, 23140), (1157, 22240), (1390, 18512), (1424, 18070), (1780, 14456), (1807, 14240), (2080, 12371), (2224, 11570), (2314, 11120), (2780, 9256), (2848, 9035), (3560, 7228), (3614, 7120), (4448, 5785), (4628, 5560)]