20517420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4441}}^1$

素因数の和:4471

約数の個数: 96

約数和(自身を含む): 71640576

約数和(自身を除く): 51123156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4441, 4620, 8882, 13323, 17764, 22205, 26646, 31087, 44410, 48851, 53292, 62174, 66615, 88820, 93261, 97702, 124348, 133230, 146553, 155435, 186522, 195404, 244255, 266460, 293106, 310870, 341957, 373044, 466305, 488510, 586212, 621740, 683914, 732765, 932610, 977020, 1025871, 1367828, 1465530, 1709785, 1865220, 2051742, 2931060, 3419570, 4103484, 5129355, 6839140, 10258710, 20517420]

約数ペア:

[(1, 20517420), (2, 10258710), (3, 6839140), (4, 5129355), (5, 4103484), (6, 3419570), (7, 2931060), (10, 2051742), (11, 1865220), (12, 1709785), (14, 1465530), (15, 1367828), (20, 1025871), (21, 977020), (22, 932610), (28, 732765), (30, 683914), (33, 621740), (35, 586212), (42, 488510), (44, 466305), (55, 373044), (60, 341957), (66, 310870), (70, 293106), (77, 266460), (84, 244255), (105, 195404), (110, 186522), (132, 155435), (140, 146553), (154, 133230), (165, 124348), (210, 97702), (220, 93261), (231, 88820), (308, 66615), (330, 62174), (385, 53292), (420, 48851), (462, 44410), (660, 31087), (770, 26646), (924, 22205), (1155, 17764), (1540, 13323), (2310, 8882), (4441, 4620)]