80935640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2903}}^1$

素因数の和:2972

約数の個数: 64

約数和(自身を含む): 197588160

約数和(自身を除く): 116652520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1394, 1640, 2788, 2903, 3485, 5576, 5806, 6970, 11612, 13940, 14515, 23224, 27880, 29030, 49351, 58060, 98702, 116120, 119023, 197404, 238046, 246755, 394808, 476092, 493510, 595115, 952184, 987020, 1190230, 1974040, 2023391, 2380460, 4046782, 4760920, 8093564, 10116955, 16187128, 20233910, 40467820, 80935640]

約数ペア:

[(1, 80935640), (2, 40467820), (4, 20233910), (5, 16187128), (8, 10116955), (10, 8093564), (17, 4760920), (20, 4046782), (34, 2380460), (40, 2023391), (41, 1974040), (68, 1190230), (82, 987020), (85, 952184), (136, 595115), (164, 493510), (170, 476092), (205, 394808), (328, 246755), (340, 238046), (410, 197404), (680, 119023), (697, 116120), (820, 98702), (1394, 58060), (1640, 49351), (2788, 29030), (2903, 27880), (3485, 23224), (5576, 14515), (5806, 13940), (6970, 11612)]