80916200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{421}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 194856390

約数和(自身を除く): 113940190

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 421, 620, 775, 842, 961, 1240, 1550, 1684, 1922, 2105, 3100, 3368, 3844, 4210, 4805, 6200, 7688, 8420, 9610, 10525, 13051, 16840, 19220, 21050, 24025, 26102, 38440, 42100, 48050, 52204, 65255, 84200, 96100, 104408, 130510, 192200, 261020, 326275, 404581, 522040, 652550, 809162, 1305100, 1618324, 2022905, 2610200, 3236648, 4045810, 8091620, 10114525, 16183240, 20229050, 40458100, 80916200]

約数ペア:

[(1, 80916200), (2, 40458100), (4, 20229050), (5, 16183240), (8, 10114525), (10, 8091620), (20, 4045810), (25, 3236648), (31, 2610200), (40, 2022905), (50, 1618324), (62, 1305100), (100, 809162), (124, 652550), (155, 522040), (200, 404581), (248, 326275), (310, 261020), (421, 192200), (620, 130510), (775, 104408), (842, 96100), (961, 84200), (1240, 65255), (1550, 52204), (1684, 48050), (1922, 42100), (2105, 38440), (3100, 26102), (3368, 24025), (3844, 21050), (4210, 19220), (4805, 16840), (6200, 13051), (7688, 10525), (8420, 9610)]