81475900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4357}}^1$

素因数の和:4399

約数の個数: 72

約数和(自身を含む): 204268176

約数和(自身を除く): 122792276

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1100, 1700, 1870, 3740, 4357, 4675, 8714, 9350, 17428, 18700, 21785, 43570, 47927, 74069, 87140, 95854, 108925, 148138, 191708, 217850, 239635, 296276, 370345, 435700, 479270, 740690, 814759, 958540, 1198175, 1481380, 1629518, 1851725, 2396350, 3259036, 3703450, 4073795, 4792700, 7406900, 8147590, 16295180, 20368975, 40737950, 81475900]

約数ペア:

[(1, 81475900), (2, 40737950), (4, 20368975), (5, 16295180), (10, 8147590), (11, 7406900), (17, 4792700), (20, 4073795), (22, 3703450), (25, 3259036), (34, 2396350), (44, 1851725), (50, 1629518), (55, 1481380), (68, 1198175), (85, 958540), (100, 814759), (110, 740690), (170, 479270), (187, 435700), (220, 370345), (275, 296276), (340, 239635), (374, 217850), (425, 191708), (550, 148138), (748, 108925), (850, 95854), (935, 87140), (1100, 74069), (1700, 47927), (1870, 43570), (3740, 21785), (4357, 18700), (4675, 17428), (8714, 9350)]