71639645

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2549}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 108691200

約数和(自身を除く): 37051555

約数列:

[1, 5, 7, 11, 35, 55, 73, 77, 365, 385, 511, 803, 2549, 2555, 4015, 5621, 12745, 17843, 28039, 28105, 89215, 140195, 186077, 196273, 930385, 981365, 1302539, 2046847, 6512695, 10234235, 14327929, 71639645]

約数ペア:

[(1, 71639645), (5, 14327929), (7, 10234235), (11, 6512695), (35, 2046847), (55, 1302539), (73, 981365), (77, 930385), (365, 196273), (385, 186077), (511, 140195), (803, 89215), (2549, 28105), (2555, 28039), (4015, 17843), (5621, 12745)]