19700655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3259}}^1$

素因数の和:3311

約数の個数: 32

約数和(自身を含む): 35051520

約数和(自身を除く): 15350865

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3259, 6045, 9777, 16295, 42367, 48885, 101029, 127101, 211835, 303087, 505145, 635505, 1313377, 1515435, 3940131, 6566885, 19700655]

約数ペア:

[(1, 19700655), (3, 6566885), (5, 3940131), (13, 1515435), (15, 1313377), (31, 635505), (39, 505145), (65, 303087), (93, 211835), (155, 127101), (195, 101029), (403, 48885), (465, 42367), (1209, 16295), (2015, 9777), (3259, 6045)]