2777135

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 32

約数和(自身を含む): 3870720

約数和(自身を除く): 1093585

約数列:

[1, 5, 19, 23, 31, 41, 95, 115, 155, 205, 437, 589, 713, 779, 943, 1271, 2185, 2945, 3565, 3895, 4715, 6355, 13547, 17917, 24149, 29233, 67735, 89585, 120745, 146165, 555427, 2777135]

約数ペア:

[(1, 2777135), (5, 555427), (19, 146165), (23, 120745), (31, 89585), (41, 67735), (95, 29233), (115, 24149), (155, 17917), (205, 13547), (437, 6355), (589, 4715), (713, 3895), (779, 3565), (943, 2945), (1271, 2185)]