31245240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20029}}^1$

素因数の和:20056

約数の個数: 64

約数和(自身を含む): 100951200

約数和(自身を除く): 69705960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20029, 40058, 60087, 80116, 100145, 120174, 160232, 200290, 240348, 260377, 300435, 400580, 480696, 520754, 600870, 781131, 801160, 1041508, 1201740, 1301885, 1562262, 2083016, 2403480, 2603770, 3124524, 3905655, 5207540, 6249048, 7811310, 10415080, 15622620, 31245240]

約数ペア:

[(1, 31245240), (2, 15622620), (3, 10415080), (4, 7811310), (5, 6249048), (6, 5207540), (8, 3905655), (10, 3124524), (12, 2603770), (13, 2403480), (15, 2083016), (20, 1562262), (24, 1301885), (26, 1201740), (30, 1041508), (39, 801160), (40, 781131), (52, 600870), (60, 520754), (65, 480696), (78, 400580), (104, 300435), (120, 260377), (130, 240348), (156, 200290), (195, 160232), (260, 120174), (312, 100145), (390, 80116), (520, 60087), (780, 40058), (1560, 20029)]