42715985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 21150895

約数列:

[1, 5, 13, 17, 29, 31, 43, 65, 85, 145, 155, 215, 221, 377, 403, 493, 527, 559, 731, 899, 1105, 1247, 1333, 1885, 2015, 2465, 2635, 2795, 3655, 4495, 6235, 6409, 6665, 6851, 9503, 11687, 15283, 16211, 17329, 21199, 22661, 32045, 34255, 38657, 47515, 58435, 76415, 81055, 86645, 105995, 113305, 193285, 198679, 275587, 294593, 502541, 657169, 993395, 1377935, 1472965, 2512705, 3285845, 8543197, 42715985]

約数ペア:

[(1, 42715985), (5, 8543197), (13, 3285845), (17, 2512705), (29, 1472965), (31, 1377935), (43, 993395), (65, 657169), (85, 502541), (145, 294593), (155, 275587), (215, 198679), (221, 193285), (377, 113305), (403, 105995), (493, 86645), (527, 81055), (559, 76415), (731, 58435), (899, 47515), (1105, 38657), (1247, 34255), (1333, 32045), (1885, 22661), (2015, 21199), (2465, 17329), (2635, 16211), (2795, 15283), (3655, 11687), (4495, 9503), (6235, 6851), (6409, 6665)]