320950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{131}}^1$

素因数の和:157

約数の個数: 36

約数和(自身を含む): 699732

約数和(自身を除く): 378782

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 131, 175, 245, 262, 350, 490, 655, 917, 1225, 1310, 1834, 2450, 3275, 4585, 6419, 6550, 9170, 12838, 22925, 32095, 45850, 64190, 160475, 320950]

約数ペア:

[(1, 320950), (2, 160475), (5, 64190), (7, 45850), (10, 32095), (14, 22925), (25, 12838), (35, 9170), (49, 6550), (50, 6419), (70, 4585), (98, 3275), (131, 2450), (175, 1834), (245, 1310), (262, 1225), (350, 917), (490, 655)]