681612290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{7879}}^1$

素因数の和:8138

約数の個数: 32

約数和(自身を含む): 1262943360

約数和(自身を除く): 581331070

約数列:

[1, 2, 5, 10, 41, 82, 205, 211, 410, 422, 1055, 2110, 7879, 8651, 15758, 17302, 39395, 43255, 78790, 86510, 323039, 646078, 1615195, 1662469, 3230390, 3324938, 8312345, 16624690, 68161229, 136322458, 340806145, 681612290]

約数ペア:

[(1, 681612290), (2, 340806145), (5, 136322458), (10, 68161229), (41, 16624690), (82, 8312345), (205, 3324938), (211, 3230390), (410, 1662469), (422, 1615195), (1055, 646078), (2110, 323039), (7879, 86510), (8651, 78790), (15758, 43255), (17302, 39395)]