18661970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2050

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 17263150

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 115, 205, 230, 410, 943, 1886, 1979, 3958, 4715, 9430, 9895, 19790, 45517, 81139, 91034, 162278, 227585, 405695, 455170, 811390, 1866197, 3732394, 9330985, 18661970]

約数ペア:

[(1, 18661970), (2, 9330985), (5, 3732394), (10, 1866197), (23, 811390), (41, 455170), (46, 405695), (82, 227585), (115, 162278), (205, 91034), (230, 81139), (410, 45517), (943, 19790), (1886, 9895), (1979, 9430), (3958, 4715)]