12899140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 28340928

約数和(自身を除く): 15441788

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 283, 430, 530, 566, 860, 1060, 1132, 1415, 2279, 2830, 4558, 5660, 9116, 11395, 12169, 14999, 22790, 24338, 29998, 45580, 48676, 59996, 60845, 74995, 121690, 149990, 243380, 299980, 644957, 1289914, 2579828, 3224785, 6449570, 12899140]

約数ペア:

[(1, 12899140), (2, 6449570), (4, 3224785), (5, 2579828), (10, 1289914), (20, 644957), (43, 299980), (53, 243380), (86, 149990), (106, 121690), (172, 74995), (212, 60845), (215, 59996), (265, 48676), (283, 45580), (430, 29998), (530, 24338), (566, 22790), (860, 14999), (1060, 12169), (1132, 11395), (1415, 9116), (2279, 5660), (2830, 4558)]