31057780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6287}}^1$

素因数の和:6328

約数の個数: 48

約数和(自身を含む): 73946880

約数和(自身を除く): 42889100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 6287, 12574, 25148, 31435, 62870, 81731, 119453, 125740, 163462, 238906, 326924, 408655, 477812, 597265, 817310, 1194530, 1552889, 1634620, 2389060, 3105778, 6211556, 7764445, 15528890, 31057780]

約数ペア:

[(1, 31057780), (2, 15528890), (4, 7764445), (5, 6211556), (10, 3105778), (13, 2389060), (19, 1634620), (20, 1552889), (26, 1194530), (38, 817310), (52, 597265), (65, 477812), (76, 408655), (95, 326924), (130, 238906), (190, 163462), (247, 125740), (260, 119453), (380, 81731), (494, 62870), (988, 31435), (1235, 25148), (2470, 12574), (4940, 6287)]