138608905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 186375168

約数和(自身を除く): 47766263

約数列:

[1, 5, 17, 31, 41, 85, 155, 205, 527, 697, 1271, 1283, 2635, 3485, 6355, 6415, 21607, 21811, 39773, 52603, 108035, 109055, 198865, 263015, 676141, 894251, 1630693, 3380705, 4471255, 8153465, 27721781, 138608905]

約数ペア:

[(1, 138608905), (5, 27721781), (17, 8153465), (31, 4471255), (41, 3380705), (85, 1630693), (155, 894251), (205, 676141), (527, 263015), (697, 198865), (1271, 109055), (1283, 108035), (2635, 52603), (3485, 39773), (6355, 21811), (6415, 21607)]