161832400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^2\times {\mathrm{421}}^1$

素因数の和:501

約数の個数: 90

約数和(自身を含む): 402703206

約数和(自身を除く): 240870806

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 421, 496, 620, 775, 842, 961, 1240, 1550, 1684, 1922, 2105, 2480, 3100, 3368, 3844, 4210, 4805, 6200, 6736, 7688, 8420, 9610, 10525, 12400, 13051, 15376, 16840, 19220, 21050, 24025, 26102, 33680, 38440, 42100, 48050, 52204, 65255, 76880, 84200, 96100, 104408, 130510, 168400, 192200, 208816, 261020, 326275, 384400, 404581, 522040, 652550, 809162, 1044080, 1305100, 1618324, 2022905, 2610200, 3236648, 4045810, 5220400, 6473296, 8091620, 10114525, 16183240, 20229050, 32366480, 40458100, 80916200, 161832400]

約数ペア:

[(1, 161832400), (2, 80916200), (4, 40458100), (5, 32366480), (8, 20229050), (10, 16183240), (16, 10114525), (20, 8091620), (25, 6473296), (31, 5220400), (40, 4045810), (50, 3236648), (62, 2610200), (80, 2022905), (100, 1618324), (124, 1305100), (155, 1044080), (200, 809162), (248, 652550), (310, 522040), (400, 404581), (421, 384400), (496, 326275), (620, 261020), (775, 208816), (842, 192200), (961, 168400), (1240, 130510), (1550, 104408), (1684, 96100), (1922, 84200), (2105, 76880), (2480, 65255), (3100, 52204), (3368, 48050), (3844, 42100), (4210, 38440), (4805, 33680), (6200, 26102), (6736, 24025), (7688, 21050), (8420, 19220), (9610, 16840), (10525, 15376), (12400, 13051)]