1978811849

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 2434199040

約数和(自身を除く): 455387191

約数列:

[1, 7, 17, 89, 119, 257, 623, 727, 1513, 1799, 4369, 5089, 10591, 12359, 22873, 30583, 64703, 86513, 160111, 186839, 388841, 452921, 1099951, 1307873, 2721887, 3176263, 7699657, 16628671, 22233841, 116400697, 282687407, 1978811849]

約数ペア:

[(1, 1978811849), (7, 282687407), (17, 116400697), (89, 22233841), (119, 16628671), (257, 7699657), (623, 3176263), (727, 2721887), (1513, 1307873), (1799, 1099951), (4369, 452921), (5089, 388841), (10591, 186839), (12359, 160111), (22873, 86513), (30583, 64703)]