20052078280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{940529}}^1$

素因数の和:940594

約数の個数: 64

約数和(自身を含む): 49772847600

約数和(自身を除く): 29720769320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4264, 5330, 10660, 21320, 940529, 1881058, 3762116, 4702645, 7524232, 9405290, 12226877, 18810580, 24453754, 37621160, 38561689, 48907508, 61134385, 77123378, 97815016, 122268770, 154246756, 192808445, 244537540, 308493512, 385616890, 489075080, 501301957, 771233780, 1002603914, 1542467560, 2005207828, 2506509785, 4010415656, 5013019570, 10026039140, 20052078280]

約数ペア:

[(1, 20052078280), (2, 10026039140), (4, 5013019570), (5, 4010415656), (8, 2506509785), (10, 2005207828), (13, 1542467560), (20, 1002603914), (26, 771233780), (40, 501301957), (41, 489075080), (52, 385616890), (65, 308493512), (82, 244537540), (104, 192808445), (130, 154246756), (164, 122268770), (205, 97815016), (260, 77123378), (328, 61134385), (410, 48907508), (520, 38561689), (533, 37621160), (820, 24453754), (1066, 18810580), (1640, 12226877), (2132, 9405290), (2665, 7524232), (4264, 4702645), (5330, 3762116), (10660, 1881058), (21320, 940529)]