65212480

素因数分解:

$2^6\times 5^1\times {\mathrm{203789}}^1$

素因数の和:203806

約数の個数: 28

約数和(自身を含む): 155287980

約数和(自身を除く): 90075500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 203789, 407578, 815156, 1018945, 1630312, 2037890, 3260624, 4075780, 6521248, 8151560, 13042496, 16303120, 32606240, 65212480]

約数ペア:

[(1, 65212480), (2, 32606240), (4, 16303120), (5, 13042496), (8, 8151560), (10, 6521248), (16, 4075780), (20, 3260624), (32, 2037890), (40, 1630312), (64, 1018945), (80, 815156), (160, 407578), (320, 203789)]