12787580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 29211840

約数和(自身を除く): 16424260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 359, 548, 685, 718, 1370, 1436, 1781, 1795, 2740, 3562, 3590, 4667, 7124, 7180, 8905, 9334, 17810, 18668, 23335, 35620, 46670, 49183, 93340, 98366, 196732, 245915, 491830, 639379, 983660, 1278758, 2557516, 3196895, 6393790, 12787580]

約数ペア:

[(1, 12787580), (2, 6393790), (4, 3196895), (5, 2557516), (10, 1278758), (13, 983660), (20, 639379), (26, 491830), (52, 245915), (65, 196732), (130, 98366), (137, 93340), (260, 49183), (274, 46670), (359, 35620), (548, 23335), (685, 18668), (718, 17810), (1370, 9334), (1436, 8905), (1781, 7180), (1795, 7124), (2740, 4667), (3562, 3590)]