257831220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1065

約数の個数: 96

約数和(自身を含む): 744629760

約数和(自身を除く): 486798540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 89, 106, 159, 178, 212, 265, 267, 318, 356, 445, 530, 534, 636, 795, 890, 911, 1060, 1068, 1335, 1590, 1780, 1822, 2670, 2733, 3180, 3644, 4555, 4717, 5340, 5466, 9110, 9434, 10932, 13665, 14151, 18220, 18868, 23585, 27330, 28302, 47170, 48283, 54660, 56604, 70755, 81079, 94340, 96566, 141510, 144849, 162158, 193132, 241415, 243237, 283020, 289698, 324316, 405395, 482830, 486474, 579396, 724245, 810790, 965660, 972948, 1216185, 1448490, 1621580, 2432370, 2896980, 4297187, 4864740, 8594374, 12891561, 17188748, 21485935, 25783122, 42971870, 51566244, 64457805, 85943740, 128915610, 257831220]

約数ペア:

[(1, 257831220), (2, 128915610), (3, 85943740), (4, 64457805), (5, 51566244), (6, 42971870), (10, 25783122), (12, 21485935), (15, 17188748), (20, 12891561), (30, 8594374), (53, 4864740), (60, 4297187), (89, 2896980), (106, 2432370), (159, 1621580), (178, 1448490), (212, 1216185), (265, 972948), (267, 965660), (318, 810790), (356, 724245), (445, 579396), (530, 486474), (534, 482830), (636, 405395), (795, 324316), (890, 289698), (911, 283020), (1060, 243237), (1068, 241415), (1335, 193132), (1590, 162158), (1780, 144849), (1822, 141510), (2670, 96566), (2733, 94340), (3180, 81079), (3644, 70755), (4555, 56604), (4717, 54660), (5340, 48283), (5466, 47170), (9110, 28302), (9434, 27330), (10932, 23585), (13665, 18868), (14151, 18220)]