20405160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56681}}^1$

素因数の和:56698

約数の個数: 48

約数和(自身を含む): 66317940

約数和(自身を除く): 45912780

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56681, 113362, 170043, 226724, 283405, 340086, 453448, 510129, 566810, 680172, 850215, 1020258, 1133620, 1360344, 1700430, 2040516, 2267240, 2550645, 3400860, 4081032, 5101290, 6801720, 10202580, 20405160]

約数ペア:

[(1, 20405160), (2, 10202580), (3, 6801720), (4, 5101290), (5, 4081032), (6, 3400860), (8, 2550645), (9, 2267240), (10, 2040516), (12, 1700430), (15, 1360344), (18, 1133620), (20, 1020258), (24, 850215), (30, 680172), (36, 566810), (40, 510129), (45, 453448), (60, 340086), (72, 283405), (90, 226724), (120, 170043), (180, 113362), (360, 56681)]