20651880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1523}}^1$

素因数の和:1650

約数の個数: 64

約数和(自身を含む): 62544960

約数和(自身を除く): 41893080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 113, 120, 226, 339, 452, 565, 678, 904, 1130, 1356, 1523, 1695, 2260, 2712, 3046, 3390, 4520, 4569, 6092, 6780, 7615, 9138, 12184, 13560, 15230, 18276, 22845, 30460, 36552, 45690, 60920, 91380, 172099, 182760, 344198, 516297, 688396, 860495, 1032594, 1376792, 1720990, 2065188, 2581485, 3441980, 4130376, 5162970, 6883960, 10325940, 20651880]

約数ペア:

[(1, 20651880), (2, 10325940), (3, 6883960), (4, 5162970), (5, 4130376), (6, 3441980), (8, 2581485), (10, 2065188), (12, 1720990), (15, 1376792), (20, 1032594), (24, 860495), (30, 688396), (40, 516297), (60, 344198), (113, 182760), (120, 172099), (226, 91380), (339, 60920), (452, 45690), (565, 36552), (678, 30460), (904, 22845), (1130, 18276), (1356, 15230), (1523, 13560), (1695, 12184), (2260, 9138), (2712, 7615), (3046, 6780), (3390, 6092), (4520, 4569)]