90417920

素因数分解:

$2^8\times 5^1\times {\mathrm{70639}}^1$

素因数の和:70660

約数の個数: 36

約数和(自身を含む): 216582240

約数和(自身を除く): 126164320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70639, 141278, 282556, 353195, 565112, 706390, 1130224, 1412780, 2260448, 2825560, 4520896, 5651120, 9041792, 11302240, 18083584, 22604480, 45208960, 90417920]

約数ペア:

[(1, 90417920), (2, 45208960), (4, 22604480), (5, 18083584), (8, 11302240), (10, 9041792), (16, 5651120), (20, 4520896), (32, 2825560), (40, 2260448), (64, 1412780), (80, 1130224), (128, 706390), (160, 565112), (256, 353195), (320, 282556), (640, 141278), (1280, 70639)]