20687470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1667}}^1$

素因数の和:1764

約数の個数: 32

約数和(自身を含む): 39991968

約数和(自身を除く): 19304498

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1667, 2482, 3334, 6205, 8335, 12410, 16670, 28339, 56678, 121691, 141695, 243382, 283390, 608455, 1216910, 2068747, 4137494, 10343735, 20687470]

約数ペア:

[(1, 20687470), (2, 10343735), (5, 4137494), (10, 2068747), (17, 1216910), (34, 608455), (73, 283390), (85, 243382), (146, 141695), (170, 121691), (365, 56678), (730, 28339), (1241, 16670), (1667, 12410), (2482, 8335), (3334, 6205)]