261576638

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 411505920

約数和(自身を除く): 149929282

約数列:

[1, 2, 41, 71, 82, 142, 179, 251, 358, 502, 2911, 5822, 7339, 10291, 12709, 14678, 17821, 20582, 25418, 35642, 44929, 89858, 521069, 730661, 1042138, 1461322, 1842089, 3189959, 3684178, 6379918, 130788319, 261576638]

約数ペア:

[(1, 261576638), (2, 130788319), (41, 6379918), (71, 3684178), (82, 3189959), (142, 1842089), (179, 1461322), (251, 1042138), (358, 730661), (502, 521069), (2911, 89858), (5822, 44929), (7339, 35642), (10291, 25418), (12709, 20582), (14678, 17821)]