2078990140

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{461}}^1\times {\mathrm{509}}^1$

素因数の和:1422

約数の個数: 48

約数和(自身を含む): 4393841760

約数和(自身を除く): 2314851620

約数列:

[1, 2, 4, 5, 10, 20, 443, 461, 509, 886, 922, 1018, 1772, 1844, 2036, 2215, 2305, 2545, 4430, 4610, 5090, 8860, 9220, 10180, 204223, 225487, 234649, 408446, 450974, 469298, 816892, 901948, 938596, 1021115, 1127435, 1173245, 2042230, 2254870, 2346490, 4084460, 4509740, 4692980, 103949507, 207899014, 415798028, 519747535, 1039495070, 2078990140]

約数ペア:

[(1, 2078990140), (2, 1039495070), (4, 519747535), (5, 415798028), (10, 207899014), (20, 103949507), (443, 4692980), (461, 4509740), (509, 4084460), (886, 2346490), (922, 2254870), (1018, 2042230), (1772, 1173245), (1844, 1127435), (2036, 1021115), (2215, 938596), (2305, 901948), (2545, 816892), (4430, 469298), (4610, 450974), (5090, 408446), (8860, 234649), (9220, 225487), (10180, 204223)]