20785620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18233}}^1$

素因数の和:18264

約数の個数: 48

約数和(自身を含む): 61266240

約数和(自身を除く): 40480620

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, 18233, 36466, 54699, 72932, 91165, 109398, 182330, 218796, 273495, 346427, 364660, 546990, 692854, 1039281, 1093980, 1385708, 1732135, 2078562, 3464270, 4157124, 5196405, 6928540, 10392810, 20785620]

約数ペア:

[(1, 20785620), (2, 10392810), (3, 6928540), (4, 5196405), (5, 4157124), (6, 3464270), (10, 2078562), (12, 1732135), (15, 1385708), (19, 1093980), (20, 1039281), (30, 692854), (38, 546990), (57, 364660), (60, 346427), (76, 273495), (95, 218796), (114, 182330), (190, 109398), (228, 91165), (285, 72932), (380, 54699), (570, 36466), (1140, 18233)]