1278690635

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{1429}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 1660538880

約数和(自身を除く): 381848245

約数列:

[1, 5, 23, 31, 115, 155, 251, 713, 1255, 1429, 3565, 5773, 7145, 7781, 28865, 32867, 38905, 44299, 164335, 178963, 221495, 358679, 894815, 1018877, 1793395, 5094385, 8249617, 11119049, 41248085, 55595245, 255738127, 1278690635]

約数ペア:

[(1, 1278690635), (5, 255738127), (23, 55595245), (31, 41248085), (115, 11119049), (155, 8249617), (251, 5094385), (713, 1793395), (1255, 1018877), (1429, 894815), (3565, 358679), (5773, 221495), (7145, 178963), (7781, 164335), (28865, 44299), (32867, 38905)]