68641660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 156008160

約数和(自身を除く): 87366500

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 109, 115, 148, 185, 218, 230, 370, 436, 460, 545, 740, 851, 1090, 1369, 1702, 2180, 2507, 2738, 3404, 4033, 4255, 5014, 5476, 6845, 8066, 8510, 10028, 12535, 13690, 16132, 17020, 20165, 25070, 27380, 31487, 40330, 50140, 62974, 80660, 92759, 125948, 149221, 157435, 185518, 298442, 314870, 371036, 463795, 596884, 629740, 746105, 927590, 1492210, 1855180, 2984420, 3432083, 6864166, 13728332, 17160415, 34320830, 68641660]

約数ペア:

[(1, 68641660), (2, 34320830), (4, 17160415), (5, 13728332), (10, 6864166), (20, 3432083), (23, 2984420), (37, 1855180), (46, 1492210), (74, 927590), (92, 746105), (109, 629740), (115, 596884), (148, 463795), (185, 371036), (218, 314870), (230, 298442), (370, 185518), (436, 157435), (460, 149221), (545, 125948), (740, 92759), (851, 80660), (1090, 62974), (1369, 50140), (1702, 40330), (2180, 31487), (2507, 27380), (2738, 25070), (3404, 20165), (4033, 17020), (4255, 16132), (5014, 13690), (5476, 12535), (6845, 10028), (8066, 8510)]