20293830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{509}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 52986960

約数和(自身を除く): 32693130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 443, 509, 886, 1018, 1329, 1527, 2215, 2545, 2658, 3054, 3987, 4430, 4581, 5090, 6645, 7635, 7974, 9162, 13290, 15270, 19935, 22905, 39870, 45810, 225487, 450974, 676461, 1127435, 1352922, 2029383, 2254870, 3382305, 4058766, 6764610, 10146915, 20293830]

約数ペア:

[(1, 20293830), (2, 10146915), (3, 6764610), (5, 4058766), (6, 3382305), (9, 2254870), (10, 2029383), (15, 1352922), (18, 1127435), (30, 676461), (45, 450974), (90, 225487), (443, 45810), (509, 39870), (886, 22905), (1018, 19935), (1329, 15270), (1527, 13290), (2215, 9162), (2545, 7974), (2658, 7635), (3054, 6645), (3987, 5090), (4430, 4581)]