20172918688

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{321143}}^1$

素因数の和:321317

約数の個数: 48

約数和(自身を含む): 43053849216

約数和(自身を除く): 22880930528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 151, 208, 302, 416, 604, 1208, 1963, 2416, 3926, 4832, 7852, 15704, 31408, 62816, 321143, 642286, 1284572, 2569144, 4174859, 5138288, 8349718, 10276576, 16699436, 33398872, 48492593, 66797744, 96985186, 133595488, 193970372, 387940744, 630403709, 775881488, 1260807418, 1551762976, 2521614836, 5043229672, 10086459344, 20172918688]

約数ペア:

[(1, 20172918688), (2, 10086459344), (4, 5043229672), (8, 2521614836), (13, 1551762976), (16, 1260807418), (26, 775881488), (32, 630403709), (52, 387940744), (104, 193970372), (151, 133595488), (208, 96985186), (302, 66797744), (416, 48492593), (604, 33398872), (1208, 16699436), (1963, 10276576), (2416, 8349718), (3926, 5138288), (4832, 4174859), (7852, 2569144), (15704, 1284572), (31408, 642286), (62816, 321143)]