20591325

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^2\times {\mathrm{173}}^1$

素因数の和:235

約数の個数: 54

約数和(自身を含む): 38777466

約数和(自身を除く): 18186141

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 173, 207, 225, 345, 519, 529, 575, 865, 1035, 1557, 1587, 1725, 2595, 2645, 3979, 4325, 4761, 5175, 7785, 7935, 11937, 12975, 13225, 19895, 23805, 35811, 38925, 39675, 59685, 91517, 99475, 119025, 179055, 274551, 298425, 457585, 823653, 895275, 1372755, 2287925, 4118265, 6863775, 20591325]

約数ペア:

[(1, 20591325), (3, 6863775), (5, 4118265), (9, 2287925), (15, 1372755), (23, 895275), (25, 823653), (45, 457585), (69, 298425), (75, 274551), (115, 179055), (173, 119025), (207, 99475), (225, 91517), (345, 59685), (519, 39675), (529, 38925), (575, 35811), (865, 23805), (1035, 19895), (1557, 13225), (1587, 12975), (1725, 11937), (2595, 7935), (2645, 7785), (3979, 5175), (4325, 4761)]