81130790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4133}}^1$

素因数の和:4304

約数の個数: 32

約数和(自身を含む): 158348736

約数和(自身を除く): 77217946

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151, 302, 755, 1510, 1963, 3926, 4133, 8266, 9815, 19630, 20665, 41330, 53729, 107458, 268645, 537290, 624083, 1248166, 3120415, 6240830, 8113079, 16226158, 40565395, 81130790]

約数ペア:

[(1, 81130790), (2, 40565395), (5, 16226158), (10, 8113079), (13, 6240830), (26, 3120415), (65, 1248166), (130, 624083), (151, 537290), (302, 268645), (755, 107458), (1510, 53729), (1963, 41330), (3926, 20665), (4133, 19630), (8266, 9815)]