291215870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{12547}}^1$

素因数の和:12776

約数の個数: 32

約数和(自身を含む): 574598016

約数和(自身を除く): 283382146

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 211, 422, 1055, 2110, 2321, 4642, 11605, 12547, 23210, 25094, 62735, 125470, 138017, 276034, 690085, 1380170, 2647417, 5294834, 13237085, 26474170, 29121587, 58243174, 145607935, 291215870]

約数ペア:

[(1, 291215870), (2, 145607935), (5, 58243174), (10, 29121587), (11, 26474170), (22, 13237085), (55, 5294834), (110, 2647417), (211, 1380170), (422, 690085), (1055, 276034), (2110, 138017), (2321, 125470), (4642, 62735), (11605, 25094), (12547, 23210)]