661001480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{13691}}^1$

素因数の和:13790

約数の個数: 64

約数和(自身を含む): 1597034880

約数和(自身を除く): 936033400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 2414, 2840, 4828, 6035, 9656, 12070, 13691, 24140, 27382, 48280, 54764, 68455, 109528, 136910, 232747, 273820, 465494, 547640, 930988, 972061, 1163735, 1861976, 1944122, 2327470, 3888244, 4654940, 4860305, 7776488, 9309880, 9720610, 16525037, 19441220, 33050074, 38882440, 66100148, 82625185, 132200296, 165250370, 330500740, 661001480]

約数ペア:

[(1, 661001480), (2, 330500740), (4, 165250370), (5, 132200296), (8, 82625185), (10, 66100148), (17, 38882440), (20, 33050074), (34, 19441220), (40, 16525037), (68, 9720610), (71, 9309880), (85, 7776488), (136, 4860305), (142, 4654940), (170, 3888244), (284, 2327470), (340, 1944122), (355, 1861976), (568, 1163735), (680, 972061), (710, 930988), (1207, 547640), (1420, 465494), (2414, 273820), (2840, 232747), (4828, 136910), (6035, 109528), (9656, 68455), (12070, 54764), (13691, 48280), (24140, 27382)]