168122020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{4001}}^1$

素因数の和:4212

約数の個数: 48

約数和(自身を含む): 387265536

約数和(自身を除く): 219143516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2101, 3820, 4001, 4202, 8002, 8404, 10505, 16004, 20005, 21010, 40010, 42020, 44011, 80020, 88022, 176044, 220055, 440110, 764191, 880220, 1528382, 3056764, 3820955, 7641910, 8406101, 15283820, 16812202, 33624404, 42030505, 84061010, 168122020]

約数ペア:

[(1, 168122020), (2, 84061010), (4, 42030505), (5, 33624404), (10, 16812202), (11, 15283820), (20, 8406101), (22, 7641910), (44, 3820955), (55, 3056764), (110, 1528382), (191, 880220), (220, 764191), (382, 440110), (764, 220055), (955, 176044), (1910, 88022), (2101, 80020), (3820, 44011), (4001, 42020), (4202, 40010), (8002, 21010), (8404, 20005), (10505, 16004)]