156768325

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 230985216

約数和(自身を除く): 74216891

約数列:

[1, 5, 7, 25, 35, 43, 83, 175, 215, 251, 301, 415, 581, 1075, 1255, 1505, 1757, 2075, 2905, 3569, 6275, 7525, 8785, 10793, 14525, 17845, 20833, 24983, 43925, 53965, 75551, 89225, 104165, 124915, 145831, 269825, 377755, 520825, 624575, 729155, 895819, 1888775, 3645775, 4479095, 6270733, 22395475, 31353665, 156768325]

約数ペア:

[(1, 156768325), (5, 31353665), (7, 22395475), (25, 6270733), (35, 4479095), (43, 3645775), (83, 1888775), (175, 895819), (215, 729155), (251, 624575), (301, 520825), (415, 377755), (581, 269825), (1075, 145831), (1255, 124915), (1505, 104165), (1757, 89225), (2075, 75551), (2905, 53965), (3569, 43925), (6275, 24983), (7525, 20833), (8785, 17845), (10793, 14525)]