318577960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1087}}^1$

素因数の和:1546

約数の個数: 64

約数和(自身を含む): 761425920

約数和(自身を除く): 442847960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 431, 680, 862, 1087, 1724, 2155, 2174, 3448, 4310, 4348, 5435, 7327, 8620, 8696, 10870, 14654, 17240, 18479, 21740, 29308, 36635, 36958, 43480, 58616, 73270, 73916, 92395, 146540, 147832, 184790, 293080, 369580, 468497, 739160, 936994, 1873988, 2342485, 3747976, 4684970, 7964449, 9369940, 15928898, 18739880, 31857796, 39822245, 63715592, 79644490, 159288980, 318577960]

約数ペア:

[(1, 318577960), (2, 159288980), (4, 79644490), (5, 63715592), (8, 39822245), (10, 31857796), (17, 18739880), (20, 15928898), (34, 9369940), (40, 7964449), (68, 4684970), (85, 3747976), (136, 2342485), (170, 1873988), (340, 936994), (431, 739160), (680, 468497), (862, 369580), (1087, 293080), (1724, 184790), (2155, 147832), (2174, 146540), (3448, 92395), (4310, 73916), (4348, 73270), (5435, 58616), (7327, 43480), (8620, 36958), (8696, 36635), (10870, 29308), (14654, 21740), (17240, 18479)]