19979968325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{11633}}^1$

素因数の和:11798

約数の個数: 48

約数和(自身を含む): 27005771520

約数和(自身を除く): 7025803195

約数列:

[1, 5, 23, 25, 29, 103, 115, 145, 515, 575, 667, 725, 2369, 2575, 2987, 3335, 11633, 11845, 14935, 16675, 58165, 59225, 68701, 74675, 267559, 290825, 337357, 343505, 1198199, 1337795, 1686785, 1717525, 5990995, 6688975, 7759211, 8433925, 27558577, 29954975, 34747771, 38796055, 137792885, 173738855, 193980275, 688964425, 799198733, 868694275, 3995993665, 19979968325]

約数ペア:

[(1, 19979968325), (5, 3995993665), (23, 868694275), (25, 799198733), (29, 688964425), (103, 193980275), (115, 173738855), (145, 137792885), (515, 38796055), (575, 34747771), (667, 29954975), (725, 27558577), (2369, 8433925), (2575, 7759211), (2987, 6688975), (3335, 5990995), (11633, 1717525), (11845, 1686785), (14935, 1337795), (16675, 1198199), (58165, 343505), (59225, 337357), (68701, 290825), (74675, 267559)]