31723640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61007}}^1$

素因数の和:61031

約数の個数: 32

約数和(自身を含む): 76870080

約数和(自身を除く): 45146440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61007, 122014, 244028, 305035, 488056, 610070, 793091, 1220140, 1586182, 2440280, 3172364, 3965455, 6344728, 7930910, 15861820, 31723640]

約数ペア:

[(1, 31723640), (2, 15861820), (4, 7930910), (5, 6344728), (8, 3965455), (10, 3172364), (13, 2440280), (20, 1586182), (26, 1220140), (40, 793091), (52, 610070), (65, 488056), (104, 305035), (130, 244028), (260, 122014), (520, 61007)]