64428160

素因数分解:

$2^7\times 5^1\times {\mathrm{100669}}^1$

素因数の和:100688

約数の個数: 32

約数和(自身を含む): 154025100

約数和(自身を除く): 89596940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 100669, 201338, 402676, 503345, 805352, 1006690, 1610704, 2013380, 3221408, 4026760, 6442816, 8053520, 12885632, 16107040, 32214080, 64428160]

約数ペア:

[(1, 64428160), (2, 32214080), (4, 16107040), (5, 12885632), (8, 8053520), (10, 6442816), (16, 4026760), (20, 3221408), (32, 2013380), (40, 1610704), (64, 1006690), (80, 805352), (128, 503345), (160, 402676), (320, 201338), (640, 100669)]