180907580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{31517}}^1$

素因数の和:31574

約数の個数: 48

約数和(自身を含む): 444782016

約数和(自身を除く): 263874436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 31517, 63034, 126068, 157585, 220619, 315170, 441238, 630340, 882476, 1103095, 1292197, 2206190, 2584394, 4412380, 5168788, 6460985, 9045379, 12921970, 18090758, 25843940, 36181516, 45226895, 90453790, 180907580]

約数ペア:

[(1, 180907580), (2, 90453790), (4, 45226895), (5, 36181516), (7, 25843940), (10, 18090758), (14, 12921970), (20, 9045379), (28, 6460985), (35, 5168788), (41, 4412380), (70, 2584394), (82, 2206190), (140, 1292197), (164, 1103095), (205, 882476), (287, 630340), (410, 441238), (574, 315170), (820, 220619), (1148, 157585), (1435, 126068), (2870, 63034), (5740, 31517)]