20941024

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 24146816

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 568, 709, 923, 1136, 1418, 1846, 2272, 2836, 3692, 5672, 7384, 9217, 11344, 14768, 18434, 22688, 29536, 36868, 50339, 73736, 100678, 147472, 201356, 294944, 402712, 654407, 805424, 1308814, 1610848, 2617628, 5235256, 10470512, 20941024]

約数ペア:

[(1, 20941024), (2, 10470512), (4, 5235256), (8, 2617628), (13, 1610848), (16, 1308814), (26, 805424), (32, 654407), (52, 402712), (71, 294944), (104, 201356), (142, 147472), (208, 100678), (284, 73736), (416, 50339), (568, 36868), (709, 29536), (923, 22688), (1136, 18434), (1418, 14768), (1846, 11344), (2272, 9217), (2836, 7384), (3692, 5672)]