68608020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87959}}^1$

素因数の和:87984

約数の個数: 48

約数和(自身を含む): 206881920

約数和(自身を除く): 138273900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 87959, 175918, 263877, 351836, 439795, 527754, 879590, 1055508, 1143467, 1319385, 1759180, 2286934, 2638770, 3430401, 4573868, 5277540, 5717335, 6860802, 11434670, 13721604, 17152005, 22869340, 34304010, 68608020]

約数ペア:

[(1, 68608020), (2, 34304010), (3, 22869340), (4, 17152005), (5, 13721604), (6, 11434670), (10, 6860802), (12, 5717335), (13, 5277540), (15, 4573868), (20, 3430401), (26, 2638770), (30, 2286934), (39, 1759180), (52, 1319385), (60, 1143467), (65, 1055508), (78, 879590), (130, 527754), (156, 439795), (195, 351836), (260, 263877), (390, 175918), (780, 87959)]