1796181680

素因数分解:

$2^4\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{11243}}^1$

素因数の和:13253

約数の個数: 40

約数和(自身を含む): 4178585232

約数和(自身を除く): 2382403552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1997, 3994, 7988, 9985, 11243, 15976, 19970, 22486, 31952, 39940, 44972, 56215, 79880, 89944, 112430, 159760, 179888, 224860, 449720, 899440, 22452271, 44904542, 89809084, 112261355, 179618168, 224522710, 359236336, 449045420, 898090840, 1796181680]

約数ペア:

[(1, 1796181680), (2, 898090840), (4, 449045420), (5, 359236336), (8, 224522710), (10, 179618168), (16, 112261355), (20, 89809084), (40, 44904542), (80, 22452271), (1997, 899440), (3994, 449720), (7988, 224860), (9985, 179888), (11243, 159760), (15976, 112430), (19970, 89944), (22486, 79880), (31952, 56215), (39940, 44972)]