20181279955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1229}}^1\times {\mathrm{3167}}^1$

素因数の和:4479

約数の個数: 32

約数和(自身を含む): 26091901440

約数和(自身を除く): 5910621485

約数列:

[1, 5, 17, 61, 85, 305, 1037, 1229, 3167, 5185, 6145, 15835, 20893, 53839, 74969, 104465, 193187, 269195, 374845, 965935, 1274473, 3284179, 3892243, 6372365, 16420895, 19461215, 66168131, 237426823, 330840655, 1187134115, 4036255991, 20181279955]

約数ペア:

[(1, 20181279955), (5, 4036255991), (17, 1187134115), (61, 330840655), (85, 237426823), (305, 66168131), (1037, 19461215), (1229, 16420895), (3167, 6372365), (5185, 3892243), (6145, 3284179), (15835, 1274473), (20893, 965935), (53839, 374845), (74969, 269195), (104465, 193187)]