205381070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 402969600

約数和(自身を除く): 197588530

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 109, 190, 211, 218, 235, 422, 470, 545, 893, 1055, 1090, 1786, 2071, 2110, 4009, 4142, 4465, 5123, 8018, 8930, 9917, 10246, 10355, 19834, 20045, 20710, 22999, 25615, 40090, 45998, 49585, 51230, 97337, 99170, 114995, 188423, 194674, 229990, 376846, 436981, 486685, 873962, 942115, 973370, 1080953, 1884230, 2161906, 2184905, 4369810, 5404765, 10809530, 20538107, 41076214, 102690535, 205381070]

約数ペア:

[(1, 205381070), (2, 102690535), (5, 41076214), (10, 20538107), (19, 10809530), (38, 5404765), (47, 4369810), (94, 2184905), (95, 2161906), (109, 1884230), (190, 1080953), (211, 973370), (218, 942115), (235, 873962), (422, 486685), (470, 436981), (545, 376846), (893, 229990), (1055, 194674), (1090, 188423), (1786, 114995), (2071, 99170), (2110, 97337), (4009, 51230), (4142, 49585), (4465, 45998), (5123, 40090), (8018, 25615), (8930, 22999), (9917, 20710), (10246, 20045), (10355, 19834)]