31015920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9941}}^1$

素因数の和:9970

約数の個数: 80

約数和(自身を含む): 103555872

約数和(自身を除く): 72539952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9941, 19882, 29823, 39764, 49705, 59646, 79528, 99410, 119292, 129233, 149115, 159056, 198820, 238584, 258466, 298230, 387699, 397640, 477168, 516932, 596460, 646165, 775398, 795280, 1033864, 1192920, 1292330, 1550796, 1938495, 2067728, 2385840, 2584660, 3101592, 3876990, 5169320, 6203184, 7753980, 10338640, 15507960, 31015920]

約数ペア:

[(1, 31015920), (2, 15507960), (3, 10338640), (4, 7753980), (5, 6203184), (6, 5169320), (8, 3876990), (10, 3101592), (12, 2584660), (13, 2385840), (15, 2067728), (16, 1938495), (20, 1550796), (24, 1292330), (26, 1192920), (30, 1033864), (39, 795280), (40, 775398), (48, 646165), (52, 596460), (60, 516932), (65, 477168), (78, 397640), (80, 387699), (104, 298230), (120, 258466), (130, 238584), (156, 198820), (195, 159056), (208, 149115), (240, 129233), (260, 119292), (312, 99410), (390, 79528), (520, 59646), (624, 49705), (780, 39764), (1040, 29823), (1560, 19882), (3120, 9941)]