644342998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{4621}}^1$

素因数の和:4840

約数の個数: 32

約数和(自身を含む): 1080882432

約数和(自身を除く): 436539434

約数列:

[1, 2, 13, 26, 31, 62, 173, 346, 403, 806, 2249, 4498, 4621, 5363, 9242, 10726, 60073, 69719, 120146, 139438, 143251, 286502, 799433, 1598866, 1862263, 3724526, 10392629, 20785258, 24782423, 49564846, 322171499, 644342998]

約数ペア:

[(1, 644342998), (2, 322171499), (13, 49564846), (26, 24782423), (31, 20785258), (62, 10392629), (173, 3724526), (346, 1862263), (403, 1598866), (806, 799433), (2249, 286502), (4498, 143251), (4621, 139438), (5363, 120146), (9242, 69719), (10726, 60073)]