66445880

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{16447}}^1$

素因数の和:16559

約数の個数: 32

約数和(自身を含む): 150992640

約数和(自身を除く): 84546760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 16447, 32894, 65788, 82235, 131576, 164470, 328940, 657880, 1661147, 3322294, 6644588, 8305735, 13289176, 16611470, 33222940, 66445880]

約数ペア:

[(1, 66445880), (2, 33222940), (4, 16611470), (5, 13289176), (8, 8305735), (10, 6644588), (20, 3322294), (40, 1661147), (101, 657880), (202, 328940), (404, 164470), (505, 131576), (808, 82235), (1010, 65788), (2020, 32894), (4040, 16447)]