639789720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{5331581}}^1$

素因数の和:5331595

約数の個数: 32

約数和(自身を含む): 1919369520

約数和(自身を除く): 1279579800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 5331581, 10663162, 15994743, 21326324, 26657905, 31989486, 42652648, 53315810, 63978972, 79973715, 106631620, 127957944, 159947430, 213263240, 319894860, 639789720]

約数ペア:

[(1, 639789720), (2, 319894860), (3, 213263240), (4, 159947430), (5, 127957944), (6, 106631620), (8, 79973715), (10, 63978972), (12, 53315810), (15, 42652648), (20, 31989486), (24, 26657905), (30, 21326324), (40, 15994743), (60, 10663162), (120, 5331581)]