20726340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18181}}^1$

素因数の和:18212

約数の個数: 48

約数和(自身を含む): 61091520

約数和(自身を除く): 40365180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18181, 36362, 54543, 72724, 90905, 109086, 181810, 218172, 272715, 345439, 363620, 545430, 690878, 1036317, 1090860, 1381756, 1727195, 2072634, 3454390, 4145268, 5181585, 6908780, 10363170, 20726340]

約数ペア:

[(1, 20726340), (2, 10363170), (3, 6908780), (4, 5181585), (5, 4145268), (6, 3454390), (10, 2072634), (12, 1727195), (15, 1381756), (19, 1090860), (20, 1036317), (30, 690878), (38, 545430), (57, 363620), (60, 345439), (76, 272715), (95, 218172), (114, 181810), (190, 109086), (228, 90905), (285, 72724), (380, 54543), (570, 36362), (1140, 18181)]