25778680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 61041600

約数和(自身を除く): 35262920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 313, 355, 568, 580, 626, 710, 1160, 1252, 1420, 1565, 2059, 2504, 2840, 3130, 4118, 6260, 8236, 9077, 10295, 12520, 16472, 18154, 20590, 22223, 36308, 41180, 44446, 45385, 72616, 82360, 88892, 90770, 111115, 177784, 181540, 222230, 363080, 444460, 644467, 888920, 1288934, 2577868, 3222335, 5155736, 6444670, 12889340, 25778680]

約数ペア:

[(1, 25778680), (2, 12889340), (4, 6444670), (5, 5155736), (8, 3222335), (10, 2577868), (20, 1288934), (29, 888920), (40, 644467), (58, 444460), (71, 363080), (116, 222230), (142, 181540), (145, 177784), (232, 111115), (284, 90770), (290, 88892), (313, 82360), (355, 72616), (568, 45385), (580, 44446), (626, 41180), (710, 36308), (1160, 22223), (1252, 20590), (1420, 18154), (1565, 16472), (2059, 12520), (2504, 10295), (2840, 9077), (3130, 8236), (4118, 6260)]