12620920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1867}}^1$

素因数の和:1904

約数の個数: 48

約数和(自身を含む): 30765960

約数和(自身を除く): 18145040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 1867, 3380, 3734, 6760, 7468, 9335, 14936, 18670, 24271, 37340, 48542, 74680, 97084, 121355, 194168, 242710, 315523, 485420, 631046, 970840, 1262092, 1577615, 2524184, 3155230, 6310460, 12620920]

約数ペア:

[(1, 12620920), (2, 6310460), (4, 3155230), (5, 2524184), (8, 1577615), (10, 1262092), (13, 970840), (20, 631046), (26, 485420), (40, 315523), (52, 242710), (65, 194168), (104, 121355), (130, 97084), (169, 74680), (260, 48542), (338, 37340), (520, 24271), (676, 18670), (845, 14936), (1352, 9335), (1690, 7468), (1867, 6760), (3380, 3734)]