2489890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 4898880

約数和(自身を除く): 2408990

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 179, 214, 358, 535, 895, 1070, 1391, 1790, 2327, 2782, 4654, 6955, 11635, 13910, 19153, 23270, 38306, 95765, 191530, 248989, 497978, 1244945, 2489890]

約数ペア:

[(1, 2489890), (2, 1244945), (5, 497978), (10, 248989), (13, 191530), (26, 95765), (65, 38306), (107, 23270), (130, 19153), (179, 13910), (214, 11635), (358, 6955), (535, 4654), (895, 2782), (1070, 2327), (1391, 1790)]