720542810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{2539}}^1$

素因数の和:2655

約数の個数: 64

約数和(自身を含む): 1459382400

約数和(自身を除く): 738839590

約数列:

[1, 2, 5, 10, 13, 26, 37, 59, 65, 74, 118, 130, 185, 295, 370, 481, 590, 767, 962, 1534, 2183, 2405, 2539, 3835, 4366, 4810, 5078, 7670, 10915, 12695, 21830, 25390, 28379, 33007, 56758, 66014, 93943, 141895, 149801, 165035, 187886, 283790, 299602, 330070, 469715, 749005, 939430, 1221259, 1498010, 1947413, 2442518, 3894826, 5542637, 6106295, 9737065, 11085274, 12212590, 19474130, 27713185, 55426370, 72054281, 144108562, 360271405, 720542810]

約数ペア:

[(1, 720542810), (2, 360271405), (5, 144108562), (10, 72054281), (13, 55426370), (26, 27713185), (37, 19474130), (59, 12212590), (65, 11085274), (74, 9737065), (118, 6106295), (130, 5542637), (185, 3894826), (295, 2442518), (370, 1947413), (481, 1498010), (590, 1221259), (767, 939430), (962, 749005), (1534, 469715), (2183, 330070), (2405, 299602), (2539, 283790), (3835, 187886), (4366, 165035), (4810, 149801), (5078, 141895), (7670, 93943), (10915, 66014), (12695, 56758), (21830, 33007), (25390, 28379)]