30139620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71761}}^1$

素因数の和:71780

約数の個数: 48

約数和(自身を含む): 96448128

約数和(自身を除く): 66308508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 71761, 143522, 215283, 287044, 358805, 430566, 502327, 717610, 861132, 1004654, 1076415, 1435220, 1506981, 2009308, 2152830, 2511635, 3013962, 4305660, 5023270, 6027924, 7534905, 10046540, 15069810, 30139620]

約数ペア:

[(1, 30139620), (2, 15069810), (3, 10046540), (4, 7534905), (5, 6027924), (6, 5023270), (7, 4305660), (10, 3013962), (12, 2511635), (14, 2152830), (15, 2009308), (20, 1506981), (21, 1435220), (28, 1076415), (30, 1004654), (35, 861132), (42, 717610), (60, 502327), (70, 430566), (84, 358805), (105, 287044), (140, 215283), (210, 143522), (420, 71761)]