678782020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{2221}}^1$

素因数の和:2333

約数の個数: 96

約数和(自身を含む): 1702229760

約数和(自身を除く): 1023447740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 59, 70, 74, 118, 140, 148, 185, 236, 259, 295, 370, 413, 518, 590, 740, 826, 1036, 1180, 1295, 1652, 2065, 2183, 2221, 2590, 4130, 4366, 4442, 5180, 8260, 8732, 8884, 10915, 11105, 15281, 15547, 21830, 22210, 30562, 31094, 43660, 44420, 61124, 62188, 76405, 77735, 82177, 131039, 152810, 155470, 164354, 262078, 305620, 310940, 328708, 410885, 524156, 575239, 655195, 821770, 917273, 1150478, 1310390, 1643540, 1834546, 2300956, 2620780, 2876195, 3669092, 4586365, 4848443, 5752390, 9172730, 9696886, 11504780, 18345460, 19393772, 24242215, 33939101, 48484430, 67878202, 96968860, 135756404, 169695505, 339391010, 678782020]

約数ペア:

[(1, 678782020), (2, 339391010), (4, 169695505), (5, 135756404), (7, 96968860), (10, 67878202), (14, 48484430), (20, 33939101), (28, 24242215), (35, 19393772), (37, 18345460), (59, 11504780), (70, 9696886), (74, 9172730), (118, 5752390), (140, 4848443), (148, 4586365), (185, 3669092), (236, 2876195), (259, 2620780), (295, 2300956), (370, 1834546), (413, 1643540), (518, 1310390), (590, 1150478), (740, 917273), (826, 821770), (1036, 655195), (1180, 575239), (1295, 524156), (1652, 410885), (2065, 328708), (2183, 310940), (2221, 305620), (2590, 262078), (4130, 164354), (4366, 155470), (4442, 152810), (5180, 131039), (8260, 82177), (8732, 77735), (8884, 76405), (10915, 62188), (11105, 61124), (15281, 44420), (15547, 43660), (21830, 31094), (22210, 30562)]