51990540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{123787}}^1$

素因数の和:123806

約数の個数: 48

約数和(自身を含む): 166371072

約数和(自身を除く): 114380532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 123787, 247574, 371361, 495148, 618935, 742722, 866509, 1237870, 1485444, 1733018, 1856805, 2475740, 2599527, 3466036, 3713610, 4332545, 5199054, 7427220, 8665090, 10398108, 12997635, 17330180, 25995270, 51990540]

約数ペア:

[(1, 51990540), (2, 25995270), (3, 17330180), (4, 12997635), (5, 10398108), (6, 8665090), (7, 7427220), (10, 5199054), (12, 4332545), (14, 3713610), (15, 3466036), (20, 2599527), (21, 2475740), (28, 1856805), (30, 1733018), (35, 1485444), (42, 1237870), (60, 866509), (70, 742722), (84, 618935), (105, 495148), (140, 371361), (210, 247574), (420, 123787)]