20178504556

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{45191}}^1$

素因数の和:45670

約数の個数: 48

約数和(自身を含む): 41544824832

約数和(自身を除く): 21366320276

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 431, 518, 862, 1036, 1724, 3017, 6034, 12068, 15947, 31894, 45191, 63788, 90382, 111629, 180764, 223258, 316337, 446516, 632674, 1265348, 1672067, 3344134, 6688268, 11704469, 19477321, 23408938, 38954642, 46817876, 77909284, 136341247, 272682494, 545364988, 720660877, 1441321754, 2882643508, 5044626139, 10089252278, 20178504556]

約数ペア:

[(1, 20178504556), (2, 10089252278), (4, 5044626139), (7, 2882643508), (14, 1441321754), (28, 720660877), (37, 545364988), (74, 272682494), (148, 136341247), (259, 77909284), (431, 46817876), (518, 38954642), (862, 23408938), (1036, 19477321), (1724, 11704469), (3017, 6688268), (6034, 3344134), (12068, 1672067), (15947, 1265348), (31894, 632674), (45191, 446516), (63788, 316337), (90382, 223258), (111629, 180764)]