38888540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 83758080

約数和(自身を除く): 44869540

約数列:

[1, 2, 4, 5, 10, 20, 79, 151, 158, 163, 302, 316, 326, 395, 604, 652, 755, 790, 815, 1510, 1580, 1630, 3020, 3260, 11929, 12877, 23858, 24613, 25754, 47716, 49226, 51508, 59645, 64385, 98452, 119290, 123065, 128770, 238580, 246130, 257540, 492260, 1944427, 3888854, 7777708, 9722135, 19444270, 38888540]

約数ペア:

[(1, 38888540), (2, 19444270), (4, 9722135), (5, 7777708), (10, 3888854), (20, 1944427), (79, 492260), (151, 257540), (158, 246130), (163, 238580), (302, 128770), (316, 123065), (326, 119290), (395, 98452), (604, 64385), (652, 59645), (755, 51508), (790, 49226), (815, 47716), (1510, 25754), (1580, 24613), (1630, 23858), (3020, 12877), (3260, 11929)]