20573615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 7074385

約数列:

[1, 5, 23, 29, 31, 115, 145, 155, 199, 667, 713, 899, 995, 3335, 3565, 4495, 4577, 5771, 6169, 20677, 22885, 28855, 30845, 103385, 132733, 141887, 178901, 663665, 709435, 894505, 4114723, 20573615]

約数ペア:

[(1, 20573615), (5, 4114723), (23, 894505), (29, 709435), (31, 663665), (115, 178901), (145, 141887), (155, 132733), (199, 103385), (667, 30845), (713, 28855), (899, 22885), (995, 20677), (3335, 6169), (3565, 5771), (4495, 4577)]