2690590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:74

約数の個数: 72

約数和(自身を含む): 6299640

約数和(自身を除く): 3609050

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 49, 70, 85, 95, 98, 119, 133, 170, 190, 238, 245, 266, 289, 323, 490, 578, 595, 646, 665, 833, 931, 1190, 1330, 1445, 1615, 1666, 1862, 2023, 2261, 2890, 3230, 4046, 4165, 4522, 4655, 5491, 8330, 9310, 10115, 10982, 11305, 14161, 15827, 20230, 22610, 27455, 28322, 31654, 38437, 54910, 70805, 76874, 79135, 141610, 158270, 192185, 269059, 384370, 538118, 1345295, 2690590]

約数ペア:

[(1, 2690590), (2, 1345295), (5, 538118), (7, 384370), (10, 269059), (14, 192185), (17, 158270), (19, 141610), (34, 79135), (35, 76874), (38, 70805), (49, 54910), (70, 38437), (85, 31654), (95, 28322), (98, 27455), (119, 22610), (133, 20230), (170, 15827), (190, 14161), (238, 11305), (245, 10982), (266, 10115), (289, 9310), (323, 8330), (490, 5491), (578, 4655), (595, 4522), (646, 4165), (665, 4046), (833, 3230), (931, 2890), (1190, 2261), (1330, 2023), (1445, 1862), (1615, 1666)]