222220400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{17921}}^1$

素因数の和:17970

約数の個数: 60

約数和(自身を含む): 551137344

約数和(自身を除く): 328916944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 17921, 35842, 71684, 89605, 143368, 179210, 286736, 358420, 448025, 555551, 716840, 896050, 1111102, 1433680, 1792100, 2222204, 2777755, 3584200, 4444408, 5555510, 7168400, 8888816, 11111020, 13888775, 22222040, 27777550, 44444080, 55555100, 111110200, 222220400]

約数ペア:

[(1, 222220400), (2, 111110200), (4, 55555100), (5, 44444080), (8, 27777550), (10, 22222040), (16, 13888775), (20, 11111020), (25, 8888816), (31, 7168400), (40, 5555510), (50, 4444408), (62, 3584200), (80, 2777755), (100, 2222204), (124, 1792100), (155, 1433680), (200, 1111102), (248, 896050), (310, 716840), (400, 555551), (496, 448025), (620, 358420), (775, 286736), (1240, 179210), (1550, 143368), (2480, 89605), (3100, 71684), (6200, 35842), (12400, 17921)]