20701070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:102

約数の個数: 96

約数和(自身を含む): 46418400

約数和(自身を除く): 25717330

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 29, 34, 38, 58, 65, 85, 95, 130, 145, 170, 190, 221, 247, 289, 290, 323, 377, 442, 493, 494, 551, 578, 646, 754, 986, 1102, 1105, 1235, 1445, 1615, 1885, 2210, 2465, 2470, 2755, 2890, 3230, 3757, 3770, 4199, 4930, 5491, 5510, 6409, 7163, 7514, 8381, 8398, 9367, 10982, 12818, 14326, 16762, 18734, 18785, 20995, 27455, 32045, 35815, 37570, 41905, 41990, 46835, 54910, 64090, 71383, 71630, 83810, 93670, 108953, 121771, 142766, 159239, 217906, 243542, 318478, 356915, 544765, 608855, 713830, 796195, 1089530, 1217710, 1592390, 2070107, 4140214, 10350535, 20701070]

約数ペア:

[(1, 20701070), (2, 10350535), (5, 4140214), (10, 2070107), (13, 1592390), (17, 1217710), (19, 1089530), (26, 796195), (29, 713830), (34, 608855), (38, 544765), (58, 356915), (65, 318478), (85, 243542), (95, 217906), (130, 159239), (145, 142766), (170, 121771), (190, 108953), (221, 93670), (247, 83810), (289, 71630), (290, 71383), (323, 64090), (377, 54910), (442, 46835), (493, 41990), (494, 41905), (551, 37570), (578, 35815), (646, 32045), (754, 27455), (986, 20995), (1102, 18785), (1105, 18734), (1235, 16762), (1445, 14326), (1615, 12818), (1885, 10982), (2210, 9367), (2465, 8398), (2470, 8381), (2755, 7514), (2890, 7163), (3230, 6409), (3757, 5510), (3770, 5491), (4199, 4930)]