18460970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 39000960

約数和(自身を除く): 20539990

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 73, 95, 110, 121, 146, 190, 209, 242, 365, 418, 605, 730, 803, 1045, 1210, 1331, 1387, 1606, 2090, 2299, 2662, 2774, 4015, 4598, 6655, 6935, 8030, 8833, 11495, 13310, 13870, 15257, 17666, 22990, 25289, 30514, 44165, 50578, 76285, 88330, 97163, 126445, 152570, 167827, 194326, 252890, 335654, 485815, 839135, 971630, 1678270, 1846097, 3692194, 9230485, 18460970]

約数ペア:

[(1, 18460970), (2, 9230485), (5, 3692194), (10, 1846097), (11, 1678270), (19, 971630), (22, 839135), (38, 485815), (55, 335654), (73, 252890), (95, 194326), (110, 167827), (121, 152570), (146, 126445), (190, 97163), (209, 88330), (242, 76285), (365, 50578), (418, 44165), (605, 30514), (730, 25289), (803, 22990), (1045, 17666), (1210, 15257), (1331, 13870), (1387, 13310), (1606, 11495), (2090, 8833), (2299, 8030), (2662, 6935), (2774, 6655), (4015, 4598)]