2187996980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{205253}}^1$

素因数の和:205316

約数の個数: 48

約数和(自身を含む): 5068952784

約数和(自身を除く): 2880955804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 205253, 410506, 821012, 1026265, 2052530, 2668289, 4105060, 5336578, 8415373, 10673156, 13341445, 16830746, 26682890, 33661492, 42076865, 53365780, 84153730, 109399849, 168307460, 218799698, 437599396, 546999245, 1093998490, 2187996980]

約数ペア:

[(1, 2187996980), (2, 1093998490), (4, 546999245), (5, 437599396), (10, 218799698), (13, 168307460), (20, 109399849), (26, 84153730), (41, 53365780), (52, 42076865), (65, 33661492), (82, 26682890), (130, 16830746), (164, 13341445), (205, 10673156), (260, 8415373), (410, 5336578), (533, 4105060), (820, 2668289), (1066, 2052530), (2132, 1026265), (2665, 821012), (5330, 410506), (10660, 205253)]