20348832920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{92951}}^1$

素因数の和:93396

約数の個数: 64

約数和(自身を含む): 49424437440

約数和(自身を除く): 29075604520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 421, 520, 842, 1684, 2105, 3368, 4210, 5473, 8420, 10946, 16840, 21892, 27365, 43784, 54730, 92951, 109460, 185902, 218920, 371804, 464755, 743608, 929510, 1208363, 1859020, 2416726, 3718040, 4833452, 6041815, 9666904, 12083630, 24167260, 39132371, 48334520, 78264742, 156529484, 195661855, 313058968, 391323710, 508720823, 782647420, 1017441646, 1565294840, 2034883292, 2543604115, 4069766584, 5087208230, 10174416460, 20348832920]

約数ペア:

[(1, 20348832920), (2, 10174416460), (4, 5087208230), (5, 4069766584), (8, 2543604115), (10, 2034883292), (13, 1565294840), (20, 1017441646), (26, 782647420), (40, 508720823), (52, 391323710), (65, 313058968), (104, 195661855), (130, 156529484), (260, 78264742), (421, 48334520), (520, 39132371), (842, 24167260), (1684, 12083630), (2105, 9666904), (3368, 6041815), (4210, 4833452), (5473, 3718040), (8420, 2416726), (10946, 1859020), (16840, 1208363), (21892, 929510), (27365, 743608), (43784, 464755), (54730, 371804), (92951, 218920), (109460, 185902)]