80631815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 108864000

約数和(自身を除く): 28232185

約数列:

[1, 5, 11, 53, 55, 139, 199, 265, 583, 695, 995, 1529, 2189, 2915, 7367, 7645, 10547, 10945, 27661, 36835, 52735, 81037, 116017, 138305, 304271, 405185, 580085, 1466033, 1521355, 7330165, 16126363, 80631815]

約数ペア:

[(1, 80631815), (5, 16126363), (11, 7330165), (53, 1521355), (55, 1466033), (139, 580085), (199, 405185), (265, 304271), (583, 138305), (695, 116017), (995, 81037), (1529, 52735), (2189, 36835), (2915, 27661), (7367, 10945), (7645, 10547)]