71691320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41681}}^1$

素因数の和:41735

約数の個数: 32

約数和(自身を含む): 165060720

約数和(自身を除く): 93369400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41681, 83362, 166724, 208405, 333448, 416810, 833620, 1667240, 1792283, 3584566, 7169132, 8961415, 14338264, 17922830, 35845660, 71691320]

約数ペア:

[(1, 71691320), (2, 35845660), (4, 17922830), (5, 14338264), (8, 8961415), (10, 7169132), (20, 3584566), (40, 1792283), (43, 1667240), (86, 833620), (172, 416810), (215, 333448), (344, 208405), (430, 166724), (860, 83362), (1720, 41681)]