138804580

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{1489}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 300384000

約数和(自身を除く): 161579420

約数列:

[1, 2, 4, 5, 10, 20, 59, 79, 118, 158, 236, 295, 316, 395, 590, 790, 1180, 1489, 1580, 2978, 4661, 5956, 7445, 9322, 14890, 18644, 23305, 29780, 46610, 87851, 93220, 117631, 175702, 235262, 351404, 439255, 470524, 588155, 878510, 1176310, 1757020, 2352620, 6940229, 13880458, 27760916, 34701145, 69402290, 138804580]

約数ペア:

[(1, 138804580), (2, 69402290), (4, 34701145), (5, 27760916), (10, 13880458), (20, 6940229), (59, 2352620), (79, 1757020), (118, 1176310), (158, 878510), (236, 588155), (295, 470524), (316, 439255), (395, 351404), (590, 235262), (790, 175702), (1180, 117631), (1489, 93220), (1580, 87851), (2978, 46610), (4661, 29780), (5956, 23305), (7445, 18644), (9322, 14890)]