72959740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16811}}^1$

素因数の和:16858

約数の個数: 48

約数和(自身を含む): 180762624

約数和(自身を除く): 107802884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 16811, 33622, 67244, 84055, 117677, 168110, 235354, 336220, 470708, 521141, 588385, 1042282, 1176770, 2084564, 2353540, 2605705, 3647987, 5211410, 7295974, 10422820, 14591948, 18239935, 36479870, 72959740]

約数ペア:

[(1, 72959740), (2, 36479870), (4, 18239935), (5, 14591948), (7, 10422820), (10, 7295974), (14, 5211410), (20, 3647987), (28, 2605705), (31, 2353540), (35, 2084564), (62, 1176770), (70, 1042282), (124, 588385), (140, 521141), (155, 470708), (217, 336220), (310, 235354), (434, 168110), (620, 117677), (868, 84055), (1085, 67244), (2170, 33622), (4340, 16811)]