31029960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19891}}^1$

素因数の和:19918

約数の個数: 64

約数和(自身を含む): 100255680

約数和(自身を除く): 69225720

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, 19891, 39782, 59673, 79564, 99455, 119346, 159128, 198910, 238692, 258583, 298365, 397820, 477384, 517166, 596730, 775749, 795640, 1034332, 1193460, 1292915, 1551498, 2068664, 2386920, 2585830, 3102996, 3878745, 5171660, 6205992, 7757490, 10343320, 15514980, 31029960]

約数ペア:

[(1, 31029960), (2, 15514980), (3, 10343320), (4, 7757490), (5, 6205992), (6, 5171660), (8, 3878745), (10, 3102996), (12, 2585830), (13, 2386920), (15, 2068664), (20, 1551498), (24, 1292915), (26, 1193460), (30, 1034332), (39, 795640), (40, 775749), (52, 596730), (60, 517166), (65, 477384), (78, 397820), (104, 298365), (120, 258583), (130, 238692), (156, 198910), (195, 159128), (260, 119346), (312, 99455), (390, 79564), (520, 59673), (780, 39782), (1560, 19891)]