78640895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 105261120

約数和(自身を除く): 26620225

約数列:

[1, 5, 17, 29, 61, 85, 145, 305, 493, 523, 1037, 1769, 2465, 2615, 5185, 8845, 8891, 15167, 30073, 31903, 44455, 75835, 150365, 159515, 257839, 542351, 925187, 1289195, 2711755, 4625935, 15728179, 78640895]

約数ペア:

[(1, 78640895), (5, 15728179), (17, 4625935), (29, 2711755), (61, 1289195), (85, 925187), (145, 542351), (305, 257839), (493, 159515), (523, 150365), (1037, 75835), (1769, 44455), (2465, 31903), (2615, 30073), (5185, 15167), (8845, 8891)]