2011090360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{636421}}^1$

素因数の和:636511

約数の個数: 32

約数和(自身を含む): 4582238400

約数和(自身を除く): 2571148040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 636421, 1272842, 2545684, 3182105, 5091368, 6364210, 12728420, 25456840, 50277259, 100554518, 201109036, 251386295, 402218072, 502772590, 1005545180, 2011090360]

約数ペア:

[(1, 2011090360), (2, 1005545180), (4, 502772590), (5, 402218072), (8, 251386295), (10, 201109036), (20, 100554518), (40, 50277259), (79, 25456840), (158, 12728420), (316, 6364210), (395, 5091368), (632, 3182105), (790, 2545684), (1580, 1272842), (3160, 636421)]