278317225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 384975360

約数和(自身を除く): 106658135

約数列:

[1, 5, 19, 25, 31, 41, 95, 155, 205, 461, 475, 589, 775, 779, 1025, 1271, 2305, 2945, 3895, 6355, 8759, 11525, 14291, 14725, 18901, 19475, 24149, 31775, 43795, 71455, 94505, 120745, 218975, 271529, 357275, 359119, 472525, 585931, 603725, 1357645, 1795595, 2929655, 6788225, 8977975, 11132689, 14648275, 55663445, 278317225]

約数ペア:

[(1, 278317225), (5, 55663445), (19, 14648275), (25, 11132689), (31, 8977975), (41, 6788225), (95, 2929655), (155, 1795595), (205, 1357645), (461, 603725), (475, 585931), (589, 472525), (775, 359119), (779, 357275), (1025, 271529), (1271, 218975), (2305, 120745), (2945, 94505), (3895, 71455), (6355, 43795), (8759, 31775), (11525, 24149), (14291, 19475), (14725, 18901)]