131654720

素因数分解:

$2^6\times 5^1\times {\mathrm{411421}}^1$

素因数の和:411438

約数の個数: 28

約数和(自身を含む): 313503564

約数和(自身を除く): 181848844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 411421, 822842, 1645684, 2057105, 3291368, 4114210, 6582736, 8228420, 13165472, 16456840, 26330944, 32913680, 65827360, 131654720]

約数ペア:

[(1, 131654720), (2, 65827360), (4, 32913680), (5, 26330944), (8, 16456840), (10, 13165472), (16, 8228420), (20, 6582736), (32, 4114210), (40, 3291368), (64, 2057105), (80, 1645684), (160, 822842), (320, 411421)]