81458208

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21757}}^1$

素因数の和:21786

約数の個数: 72

約数和(自身を含む): 249477228

約数和(自身を除く): 168019020

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 21757, 43514, 65271, 87028, 130542, 174056, 195813, 261084, 282841, 348112, 391626, 522168, 565682, 696224, 783252, 848523, 1044336, 1131364, 1566504, 1697046, 2088672, 2262728, 2545569, 3133008, 3394092, 4525456, 5091138, 6266016, 6788184, 9050912, 10182276, 13576368, 20364552, 27152736, 40729104, 81458208]

約数ペア:

[(1, 81458208), (2, 40729104), (3, 27152736), (4, 20364552), (6, 13576368), (8, 10182276), (9, 9050912), (12, 6788184), (13, 6266016), (16, 5091138), (18, 4525456), (24, 3394092), (26, 3133008), (32, 2545569), (36, 2262728), (39, 2088672), (48, 1697046), (52, 1566504), (72, 1131364), (78, 1044336), (96, 848523), (104, 783252), (117, 696224), (144, 565682), (156, 522168), (208, 391626), (234, 348112), (288, 282841), (312, 261084), (416, 195813), (468, 174056), (624, 130542), (936, 87028), (1248, 65271), (1872, 43514), (3744, 21757)]