20747640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4217}}^1$

素因数の和:4272

約数の個数: 64

約数和(自身を含む): 63776160

約数和(自身を除く): 43028520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4217, 4920, 8434, 12651, 16868, 21085, 25302, 33736, 42170, 50604, 63255, 84340, 101208, 126510, 168680, 172897, 253020, 345794, 506040, 518691, 691588, 864485, 1037382, 1383176, 1728970, 2074764, 2593455, 3457940, 4149528, 5186910, 6915880, 10373820, 20747640]

約数ペア:

[(1, 20747640), (2, 10373820), (3, 6915880), (4, 5186910), (5, 4149528), (6, 3457940), (8, 2593455), (10, 2074764), (12, 1728970), (15, 1383176), (20, 1037382), (24, 864485), (30, 691588), (40, 518691), (41, 506040), (60, 345794), (82, 253020), (120, 172897), (123, 168680), (164, 126510), (205, 101208), (246, 84340), (328, 63255), (410, 50604), (492, 42170), (615, 33736), (820, 25302), (984, 21085), (1230, 16868), (1640, 12651), (2460, 8434), (4217, 4920)]