688430020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2185

約数の個数: 72

約数和(自身を含む): 1560787200

約数和(自身を除く): 872357180

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 529, 620, 713, 1058, 1426, 2099, 2116, 2645, 2852, 3565, 4198, 5290, 7130, 8396, 10495, 10580, 14260, 16399, 20990, 32798, 41980, 48277, 65069, 65596, 81995, 96554, 130138, 163990, 193108, 241385, 260276, 325345, 327980, 482770, 650690, 965540, 1110371, 1301380, 1496587, 2220742, 2993174, 4441484, 5551855, 5986348, 7482935, 11103710, 14965870, 22207420, 29931740, 34421501, 68843002, 137686004, 172107505, 344215010, 688430020]

約数ペア:

[(1, 688430020), (2, 344215010), (4, 172107505), (5, 137686004), (10, 68843002), (20, 34421501), (23, 29931740), (31, 22207420), (46, 14965870), (62, 11103710), (92, 7482935), (115, 5986348), (124, 5551855), (155, 4441484), (230, 2993174), (310, 2220742), (460, 1496587), (529, 1301380), (620, 1110371), (713, 965540), (1058, 650690), (1426, 482770), (2099, 327980), (2116, 325345), (2645, 260276), (2852, 241385), (3565, 193108), (4198, 163990), (5290, 130138), (7130, 96554), (8396, 81995), (10495, 65596), (10580, 65069), (14260, 48277), (16399, 41980), (20990, 32798)]