1617495920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{493139}}^1$

素因数の和:493193

約数の個数: 40

約数和(自身を含む): 3852409680

約数和(自身を除く): 2234913760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 493139, 986278, 1972556, 2465695, 3945112, 4931390, 7890224, 9862780, 19725560, 20218699, 39451120, 40437398, 80874796, 101093495, 161749592, 202186990, 323499184, 404373980, 808747960, 1617495920]

約数ペア:

[(1, 1617495920), (2, 808747960), (4, 404373980), (5, 323499184), (8, 202186990), (10, 161749592), (16, 101093495), (20, 80874796), (40, 40437398), (41, 39451120), (80, 20218699), (82, 19725560), (164, 9862780), (205, 7890224), (328, 4931390), (410, 3945112), (656, 2465695), (820, 1972556), (1640, 986278), (3280, 493139)]