20003045020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{523}}^1\times {\mathrm{1063}}^1$

素因数の和:1859

約数の個数: 96

約数和(自身を含む): 48331680768

約数和(自身を除く): 28328635748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 523, 1028, 1046, 1063, 1285, 1799, 2092, 2126, 2570, 2615, 3598, 3661, 4252, 5140, 5230, 5315, 7196, 7322, 7441, 8995, 10460, 10630, 14644, 14882, 17990, 18305, 21260, 29764, 35980, 36610, 37205, 73220, 74410, 134411, 148820, 268822, 273191, 537644, 546382, 555949, 672055, 940877, 1092764, 1111898, 1344110, 1365955, 1881754, 1912337, 2223796, 2688220, 2731910, 2779745, 3763508, 3824674, 3891643, 4704385, 5463820, 5559490, 7649348, 7783286, 9408770, 9561685, 11118980, 15566572, 18817540, 19123370, 19458215, 38246740, 38916430, 77832860, 142878893, 285757786, 571515572, 714394465, 1000152251, 1428788930, 2000304502, 2857577860, 4000609004, 5000761255, 10001522510, 20003045020]

約数ペア:

[(1, 20003045020), (2, 10001522510), (4, 5000761255), (5, 4000609004), (7, 2857577860), (10, 2000304502), (14, 1428788930), (20, 1000152251), (28, 714394465), (35, 571515572), (70, 285757786), (140, 142878893), (257, 77832860), (514, 38916430), (523, 38246740), (1028, 19458215), (1046, 19123370), (1063, 18817540), (1285, 15566572), (1799, 11118980), (2092, 9561685), (2126, 9408770), (2570, 7783286), (2615, 7649348), (3598, 5559490), (3661, 5463820), (4252, 4704385), (5140, 3891643), (5230, 3824674), (5315, 3763508), (7196, 2779745), (7322, 2731910), (7441, 2688220), (8995, 2223796), (10460, 1912337), (10630, 1881754), (14644, 1365955), (14882, 1344110), (17990, 1111898), (18305, 1092764), (21260, 940877), (29764, 672055), (35980, 555949), (36610, 546382), (37205, 537644), (73220, 273191), (74410, 268822), (134411, 148820)]