18415696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 22831664

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 43, 52, 58, 71, 86, 104, 116, 142, 172, 208, 232, 284, 344, 377, 464, 559, 568, 688, 754, 923, 1118, 1136, 1247, 1508, 1846, 2059, 2236, 2494, 3016, 3053, 3692, 4118, 4472, 4988, 6032, 6106, 7384, 8236, 8944, 9976, 12212, 14768, 16211, 16472, 19952, 24424, 26767, 32422, 32944, 39689, 48848, 53534, 64844, 79378, 88537, 107068, 129688, 158756, 177074, 214136, 259376, 317512, 354148, 428272, 635024, 708296, 1150981, 1416592, 2301962, 4603924, 9207848, 18415696]

約数ペア:

[(1, 18415696), (2, 9207848), (4, 4603924), (8, 2301962), (13, 1416592), (16, 1150981), (26, 708296), (29, 635024), (43, 428272), (52, 354148), (58, 317512), (71, 259376), (86, 214136), (104, 177074), (116, 158756), (142, 129688), (172, 107068), (208, 88537), (232, 79378), (284, 64844), (344, 53534), (377, 48848), (464, 39689), (559, 32944), (568, 32422), (688, 26767), (754, 24424), (923, 19952), (1118, 16472), (1136, 16211), (1247, 14768), (1508, 12212), (1846, 9976), (2059, 8944), (2236, 8236), (2494, 7384), (3016, 6106), (3053, 6032), (3692, 4988), (4118, 4472)]