80626840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1447}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 208512000

約数和(自身を除く): 127885160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 796, 995, 1393, 1447, 1592, 1990, 2786, 2894, 3980, 5572, 5788, 6965, 7235, 7960, 10129, 11144, 11576, 13930, 14470, 20258, 27860, 28940, 40516, 50645, 55720, 57880, 81032, 101290, 202580, 287953, 405160, 575906, 1151812, 1439765, 2015671, 2303624, 2879530, 4031342, 5759060, 8062684, 10078355, 11518120, 16125368, 20156710, 40313420, 80626840]

約数ペア:

[(1, 80626840), (2, 40313420), (4, 20156710), (5, 16125368), (7, 11518120), (8, 10078355), (10, 8062684), (14, 5759060), (20, 4031342), (28, 2879530), (35, 2303624), (40, 2015671), (56, 1439765), (70, 1151812), (140, 575906), (199, 405160), (280, 287953), (398, 202580), (796, 101290), (995, 81032), (1393, 57880), (1447, 55720), (1592, 50645), (1990, 40516), (2786, 28940), (2894, 27860), (3980, 20258), (5572, 14470), (5788, 13930), (6965, 11576), (7235, 11144), (7960, 10129)]