31230440

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4973}}^1$

素因数の和:5141

約数の個数: 32

約数和(自身を含む): 70730280

約数和(自身を除く): 39499840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4973, 6280, 9946, 19892, 24865, 39784, 49730, 99460, 198920, 780761, 1561522, 3123044, 3903805, 6246088, 7807610, 15615220, 31230440]

約数ペア:

[(1, 31230440), (2, 15615220), (4, 7807610), (5, 6246088), (8, 3903805), (10, 3123044), (20, 1561522), (40, 780761), (157, 198920), (314, 99460), (628, 49730), (785, 39784), (1256, 24865), (1570, 19892), (3140, 9946), (4973, 6280)]