28890735

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 23986065

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 67, 85, 89, 95, 201, 255, 267, 285, 323, 335, 445, 969, 1005, 1139, 1273, 1335, 1513, 1615, 1691, 3417, 3819, 4539, 4845, 5073, 5695, 5963, 6365, 7565, 8455, 17085, 17889, 19095, 21641, 22695, 25365, 28747, 29815, 64923, 86241, 89445, 101371, 108205, 113297, 143735, 304113, 324615, 339891, 431205, 506855, 566485, 1520565, 1699455, 1926049, 5778147, 9630245, 28890735]

約数ペア:

[(1, 28890735), (3, 9630245), (5, 5778147), (15, 1926049), (17, 1699455), (19, 1520565), (51, 566485), (57, 506855), (67, 431205), (85, 339891), (89, 324615), (95, 304113), (201, 143735), (255, 113297), (267, 108205), (285, 101371), (323, 89445), (335, 86241), (445, 64923), (969, 29815), (1005, 28747), (1139, 25365), (1273, 22695), (1335, 21641), (1513, 19095), (1615, 17889), (1691, 17085), (3417, 8455), (3819, 7565), (4539, 6365), (4845, 5963), (5073, 5695)]