20726730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 55639116

約数和(自身を除く): 34912386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 137, 205, 246, 274, 369, 410, 411, 615, 685, 738, 822, 1230, 1233, 1370, 1681, 1845, 2055, 2466, 3362, 3690, 4110, 5043, 5617, 6165, 8405, 10086, 11234, 12330, 15129, 16810, 16851, 25215, 28085, 30258, 33702, 50430, 50553, 56170, 75645, 84255, 101106, 151290, 168510, 230297, 252765, 460594, 505530, 690891, 1151485, 1381782, 2072673, 2302970, 3454455, 4145346, 6908910, 10363365, 20726730]

約数ペア:

[(1, 20726730), (2, 10363365), (3, 6908910), (5, 4145346), (6, 3454455), (9, 2302970), (10, 2072673), (15, 1381782), (18, 1151485), (30, 690891), (41, 505530), (45, 460594), (82, 252765), (90, 230297), (123, 168510), (137, 151290), (205, 101106), (246, 84255), (274, 75645), (369, 56170), (410, 50553), (411, 50430), (615, 33702), (685, 30258), (738, 28085), (822, 25215), (1230, 16851), (1233, 16810), (1370, 15129), (1681, 12330), (1845, 11234), (2055, 10086), (2466, 8405), (3362, 6165), (3690, 5617), (4110, 5043)]