71358440

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4027}}^1$

素因数の和:4481

約数の個数: 32

約数和(自身を含む): 160958880

約数和(自身を除く): 89600440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4027, 4430, 8054, 8860, 16108, 17720, 20135, 32216, 40270, 80540, 161080, 1783961, 3567922, 7135844, 8919805, 14271688, 17839610, 35679220, 71358440]

約数ペア:

[(1, 71358440), (2, 35679220), (4, 17839610), (5, 14271688), (8, 8919805), (10, 7135844), (20, 3567922), (40, 1783961), (443, 161080), (886, 80540), (1772, 40270), (2215, 32216), (3544, 20135), (4027, 17720), (4430, 16108), (8054, 8860)]