256153872

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{857}}^1$

素因数の和:1360

約数の個数: 80

約数和(自身を含む): 714954240

約数和(自身を除く): 458800368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 479, 624, 857, 958, 1437, 1714, 1916, 2571, 2874, 3428, 3832, 5142, 5748, 6227, 6856, 7664, 10284, 11141, 11496, 12454, 13712, 18681, 20568, 22282, 22992, 24908, 33423, 37362, 41136, 44564, 49816, 66846, 74724, 89128, 99632, 133692, 149448, 178256, 267384, 298896, 410503, 534768, 821006, 1231509, 1642012, 2463018, 3284024, 4926036, 5336539, 6568048, 9852072, 10673078, 16009617, 19704144, 21346156, 32019234, 42692312, 64038468, 85384624, 128076936, 256153872]

約数ペア:

[(1, 256153872), (2, 128076936), (3, 85384624), (4, 64038468), (6, 42692312), (8, 32019234), (12, 21346156), (13, 19704144), (16, 16009617), (24, 10673078), (26, 9852072), (39, 6568048), (48, 5336539), (52, 4926036), (78, 3284024), (104, 2463018), (156, 1642012), (208, 1231509), (312, 821006), (479, 534768), (624, 410503), (857, 298896), (958, 267384), (1437, 178256), (1714, 149448), (1916, 133692), (2571, 99632), (2874, 89128), (3428, 74724), (3832, 66846), (5142, 49816), (5748, 44564), (6227, 41136), (6856, 37362), (7664, 33423), (10284, 24908), (11141, 22992), (11496, 22282), (12454, 20568), (13712, 18681)]