42819580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 93421440

約数和(自身を除く): 50601860

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 661, 790, 820, 1322, 1580, 2644, 3239, 3305, 6478, 6610, 12956, 13220, 16195, 27101, 32390, 52219, 54202, 64780, 104438, 108404, 135505, 208876, 261095, 271010, 522190, 542020, 1044380, 2140979, 4281958, 8563916, 10704895, 21409790, 42819580]

約数ペア:

[(1, 42819580), (2, 21409790), (4, 10704895), (5, 8563916), (10, 4281958), (20, 2140979), (41, 1044380), (79, 542020), (82, 522190), (158, 271010), (164, 261095), (205, 208876), (316, 135505), (395, 108404), (410, 104438), (661, 64780), (790, 54202), (820, 52219), (1322, 32390), (1580, 27101), (2644, 16195), (3239, 13220), (3305, 12956), (6478, 6610)]