20507585

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 9296959

約数列:

[1, 5, 7, 31, 35, 41, 155, 205, 217, 287, 461, 1085, 1271, 1435, 2305, 3227, 6355, 8897, 14291, 16135, 18901, 44485, 71455, 94505, 100037, 132307, 500185, 585931, 661535, 2929655, 4101517, 20507585]

約数ペア:

[(1, 20507585), (5, 4101517), (7, 2929655), (31, 661535), (35, 585931), (41, 500185), (155, 132307), (205, 100037), (217, 94505), (287, 71455), (461, 44485), (1085, 18901), (1271, 16135), (1435, 14291), (2305, 8897), (3227, 6355)]