78812240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75781}}^1$

素因数の和:75807

約数の個数: 40

約数和(自身を含む): 197336328

約数和(自身を除く): 118524088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75781, 151562, 303124, 378905, 606248, 757810, 985153, 1212496, 1515620, 1970306, 3031240, 3940612, 4925765, 6062480, 7881224, 9851530, 15762448, 19703060, 39406120, 78812240]

約数ペア:

[(1, 78812240), (2, 39406120), (4, 19703060), (5, 15762448), (8, 9851530), (10, 7881224), (13, 6062480), (16, 4925765), (20, 3940612), (26, 3031240), (40, 1970306), (52, 1515620), (65, 1212496), (80, 985153), (104, 757810), (130, 606248), (208, 378905), (260, 303124), (520, 151562), (1040, 75781)]