7878140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 18567360

約数和(自身を除く): 10689220

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 47, 58, 68, 85, 94, 116, 145, 170, 188, 235, 289, 290, 340, 470, 493, 578, 580, 799, 940, 986, 1156, 1363, 1445, 1598, 1972, 2465, 2726, 2890, 3196, 3995, 4930, 5452, 5780, 6815, 7990, 8381, 9860, 13583, 13630, 15980, 16762, 23171, 27166, 27260, 33524, 41905, 46342, 54332, 67915, 83810, 92684, 115855, 135830, 167620, 231710, 271660, 393907, 463420, 787814, 1575628, 1969535, 3939070, 7878140]

約数ペア:

[(1, 7878140), (2, 3939070), (4, 1969535), (5, 1575628), (10, 787814), (17, 463420), (20, 393907), (29, 271660), (34, 231710), (47, 167620), (58, 135830), (68, 115855), (85, 92684), (94, 83810), (116, 67915), (145, 54332), (170, 46342), (188, 41905), (235, 33524), (289, 27260), (290, 27166), (340, 23171), (470, 16762), (493, 15980), (578, 13630), (580, 13583), (799, 9860), (940, 8381), (986, 7990), (1156, 6815), (1363, 5780), (1445, 5452), (1598, 4930), (1972, 3995), (2465, 3196), (2726, 2890)]