18277788680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{440641}}^1$

素因数の和:440730

約数の個数: 64

約数和(自身を含む): 44258082480

約数和(自身を除く): 25980293800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 1037, 1220, 2074, 2440, 4148, 5185, 8296, 10370, 20740, 41480, 440641, 881282, 1762564, 2203205, 3525128, 4406410, 7490897, 8812820, 14981794, 17625640, 26879101, 29963588, 37454485, 53758202, 59927176, 74908970, 107516404, 134395505, 149817940, 215032808, 268791010, 299635880, 456944717, 537582020, 913889434, 1075164040, 1827778868, 2284723585, 3655557736, 4569447170, 9138894340, 18277788680]

約数ペア:

[(1, 18277788680), (2, 9138894340), (4, 4569447170), (5, 3655557736), (8, 2284723585), (10, 1827778868), (17, 1075164040), (20, 913889434), (34, 537582020), (40, 456944717), (61, 299635880), (68, 268791010), (85, 215032808), (122, 149817940), (136, 134395505), (170, 107516404), (244, 74908970), (305, 59927176), (340, 53758202), (488, 37454485), (610, 29963588), (680, 26879101), (1037, 17625640), (1220, 14981794), (2074, 8812820), (2440, 7490897), (4148, 4406410), (5185, 3525128), (8296, 2203205), (10370, 1762564), (20740, 881282), (41480, 440641)]