17920550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:785

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 18639610

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 727, 850, 986, 1450, 1454, 2465, 3635, 4930, 7270, 12325, 12359, 18175, 21083, 24650, 24718, 36350, 42166, 61795, 105415, 123590, 210830, 308975, 358411, 527075, 617950, 716822, 1054150, 1792055, 3584110, 8960275, 17920550]

約数ペア:

[(1, 17920550), (2, 8960275), (5, 3584110), (10, 1792055), (17, 1054150), (25, 716822), (29, 617950), (34, 527075), (50, 358411), (58, 308975), (85, 210830), (145, 123590), (170, 105415), (290, 61795), (425, 42166), (493, 36350), (725, 24718), (727, 24650), (850, 21083), (986, 18175), (1450, 12359), (1454, 12325), (2465, 7270), (3635, 4930)]