78662720

素因数分解:

$2^6\times 5^1\times {\mathrm{245821}}^1$

素因数の和:245838

約数の個数: 28

約数和(自身を含む): 187316364

約数和(自身を除く): 108653644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245821, 491642, 983284, 1229105, 1966568, 2458210, 3933136, 4916420, 7866272, 9832840, 15732544, 19665680, 39331360, 78662720]

約数ペア:

[(1, 78662720), (2, 39331360), (4, 19665680), (5, 15732544), (8, 9832840), (10, 7866272), (16, 4916420), (20, 3933136), (32, 2458210), (40, 1966568), (64, 1229105), (80, 983284), (160, 491642), (320, 245821)]