219902680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{134087}}^1$

素因数の和:134139

約数の個数: 32

約数和(自身を含む): 506852640

約数和(自身を除く): 286949960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 134087, 268174, 536348, 670435, 1072696, 1340870, 2681740, 5363480, 5497567, 10995134, 21990268, 27487835, 43980536, 54975670, 109951340, 219902680]

約数ペア:

[(1, 219902680), (2, 109951340), (4, 54975670), (5, 43980536), (8, 27487835), (10, 21990268), (20, 10995134), (40, 5497567), (41, 5363480), (82, 2681740), (164, 1340870), (205, 1072696), (328, 670435), (410, 536348), (820, 268174), (1640, 134087)]