81217360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{145031}}^1$

素因数の和:145051

約数の個数: 40

約数和(自身を含む): 215807616

約数和(自身を除く): 134590256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 145031, 290062, 580124, 725155, 1015217, 1160248, 1450310, 2030434, 2320496, 2900620, 4060868, 5076085, 5801240, 8121736, 10152170, 11602480, 16243472, 20304340, 40608680, 81217360]

約数ペア:

[(1, 81217360), (2, 40608680), (4, 20304340), (5, 16243472), (7, 11602480), (8, 10152170), (10, 8121736), (14, 5801240), (16, 5076085), (20, 4060868), (28, 2900620), (35, 2320496), (40, 2030434), (56, 1450310), (70, 1160248), (80, 1015217), (112, 725155), (140, 580124), (280, 290062), (560, 145031)]