2018840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1231}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 4656960

約数和(自身を除く): 2638120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1231, 1640, 2462, 4924, 6155, 9848, 12310, 24620, 49240, 50471, 100942, 201884, 252355, 403768, 504710, 1009420, 2018840]

約数ペア:

[(1, 2018840), (2, 1009420), (4, 504710), (5, 403768), (8, 252355), (10, 201884), (20, 100942), (40, 50471), (41, 49240), (82, 24620), (164, 12310), (205, 9848), (328, 6155), (410, 4924), (820, 2462), (1231, 1640)]