1287728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 40

約数和(自身を含む): 2770656

約数和(自身を除く): 1482928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 151, 164, 208, 302, 328, 533, 604, 656, 1066, 1208, 1963, 2132, 2416, 3926, 4264, 6191, 7852, 8528, 12382, 15704, 24764, 31408, 49528, 80483, 99056, 160966, 321932, 643864, 1287728]

約数ペア:

[(1, 1287728), (2, 643864), (4, 321932), (8, 160966), (13, 99056), (16, 80483), (26, 49528), (41, 31408), (52, 24764), (82, 15704), (104, 12382), (151, 8528), (164, 7852), (208, 6191), (302, 4264), (328, 3926), (533, 2416), (604, 2132), (656, 1963), (1066, 1208)]