18979625

素因数分解:

$5^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 27456000

約数和(自身を除く): 8476375

約数列:

[1, 5, 7, 25, 35, 109, 125, 175, 199, 545, 763, 875, 995, 1393, 2725, 3815, 4975, 6965, 13625, 19075, 21691, 24875, 34825, 95375, 108455, 151837, 174125, 542275, 759185, 2711375, 3795925, 18979625]

約数ペア:

[(1, 18979625), (5, 3795925), (7, 2711375), (25, 759185), (35, 542275), (109, 174125), (125, 151837), (175, 108455), (199, 95375), (545, 34825), (763, 24875), (875, 21691), (995, 19075), (1393, 13625), (2725, 6965), (3815, 4975)]