20789976272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2437849}}^1$

素因数の和:2437911

約数の個数: 40

約数和(自身を含む): 44437129800

約数和(自身を除く): 23647153528

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 4264, 8528, 2437849, 4875698, 9751396, 19502792, 31692037, 39005584, 63384074, 99951809, 126768148, 199903618, 253536296, 399807236, 507072592, 799614472, 1299373517, 1599228944, 2598747034, 5197494068, 10394988136, 20789976272]

約数ペア:

[(1, 20789976272), (2, 10394988136), (4, 5197494068), (8, 2598747034), (13, 1599228944), (16, 1299373517), (26, 799614472), (41, 507072592), (52, 399807236), (82, 253536296), (104, 199903618), (164, 126768148), (208, 99951809), (328, 63384074), (533, 39005584), (656, 31692037), (1066, 19502792), (2132, 9751396), (4264, 4875698), (8528, 2437849)]