19510020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{383}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 59544576

約数和(自身を除く): 40034556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 383, 566, 766, 849, 1132, 1149, 1415, 1532, 1698, 1915, 2298, 2547, 2830, 3396, 3447, 3830, 4245, 4596, 5094, 5660, 5745, 6894, 7660, 8490, 10188, 11490, 12735, 13788, 16980, 17235, 22980, 25470, 34470, 50940, 68940, 108389, 216778, 325167, 433556, 541945, 650334, 975501, 1083890, 1300668, 1625835, 1951002, 2167780, 3251670, 3902004, 4877505, 6503340, 9755010, 19510020]

約数ペア:

[(1, 19510020), (2, 9755010), (3, 6503340), (4, 4877505), (5, 3902004), (6, 3251670), (9, 2167780), (10, 1951002), (12, 1625835), (15, 1300668), (18, 1083890), (20, 975501), (30, 650334), (36, 541945), (45, 433556), (60, 325167), (90, 216778), (180, 108389), (283, 68940), (383, 50940), (566, 34470), (766, 25470), (849, 22980), (1132, 17235), (1149, 16980), (1415, 13788), (1532, 12735), (1698, 11490), (1915, 10188), (2298, 8490), (2547, 7660), (2830, 6894), (3396, 5745), (3447, 5660), (3830, 5094), (4245, 4596)]