90970420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{457}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 197361360

約数和(自身を除く): 106390940

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 269, 370, 457, 538, 740, 914, 1076, 1345, 1828, 2285, 2690, 4570, 5380, 9140, 9953, 16909, 19906, 33818, 39812, 49765, 67636, 84545, 99530, 122933, 169090, 199060, 245866, 338180, 491732, 614665, 1229330, 2458660, 4548521, 9097042, 18194084, 22742605, 45485210, 90970420]

約数ペア:

[(1, 90970420), (2, 45485210), (4, 22742605), (5, 18194084), (10, 9097042), (20, 4548521), (37, 2458660), (74, 1229330), (148, 614665), (185, 491732), (269, 338180), (370, 245866), (457, 199060), (538, 169090), (740, 122933), (914, 99530), (1076, 84545), (1345, 67636), (1828, 49765), (2285, 39812), (2690, 33818), (4570, 19906), (5380, 16909), (9140, 9953)]