12659140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 28894320

約数和(自身を除く): 16235180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 269, 362, 538, 724, 905, 1076, 1345, 1810, 2353, 2690, 3497, 3620, 4706, 5380, 6994, 9412, 11765, 13988, 17485, 23530, 34970, 47060, 48689, 69940, 97378, 194756, 243445, 486890, 632957, 973780, 1265914, 2531828, 3164785, 6329570, 12659140]

約数ペア:

[(1, 12659140), (2, 6329570), (4, 3164785), (5, 2531828), (10, 1265914), (13, 973780), (20, 632957), (26, 486890), (52, 243445), (65, 194756), (130, 97378), (181, 69940), (260, 48689), (269, 47060), (362, 34970), (538, 23530), (724, 17485), (905, 13988), (1076, 11765), (1345, 9412), (1810, 6994), (2353, 5380), (2690, 4706), (3497, 3620)]