90712020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{215981}}^1$

素因数の和:216000

約数の個数: 48

約数和(自身を含む): 290279808

約数和(自身を除く): 199567788

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, 215981, 431962, 647943, 863924, 1079905, 1295886, 1511867, 2159810, 2591772, 3023734, 3239715, 4319620, 4535601, 6047468, 6479430, 7559335, 9071202, 12958860, 15118670, 18142404, 22678005, 30237340, 45356010, 90712020]

約数ペア:

[(1, 90712020), (2, 45356010), (3, 30237340), (4, 22678005), (5, 18142404), (6, 15118670), (7, 12958860), (10, 9071202), (12, 7559335), (14, 6479430), (15, 6047468), (20, 4535601), (21, 4319620), (28, 3239715), (30, 3023734), (35, 2591772), (42, 2159810), (60, 1511867), (70, 1295886), (84, 1079905), (105, 863924), (140, 647943), (210, 431962), (420, 215981)]