20374172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 44255232

約数和(自身を除く): 23881060

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 223, 251, 364, 446, 502, 892, 1004, 1561, 1757, 2899, 3122, 3263, 3514, 5798, 6244, 6526, 7028, 11596, 13052, 20293, 22841, 40586, 45682, 55973, 81172, 91364, 111946, 223892, 391811, 727649, 783622, 1455298, 1567244, 2910596, 5093543, 10187086, 20374172]

約数ペア:

[(1, 20374172), (2, 10187086), (4, 5093543), (7, 2910596), (13, 1567244), (14, 1455298), (26, 783622), (28, 727649), (52, 391811), (91, 223892), (182, 111946), (223, 91364), (251, 81172), (364, 55973), (446, 45682), (502, 40586), (892, 22841), (1004, 20293), (1561, 13052), (1757, 11596), (2899, 7028), (3122, 6526), (3263, 6244), (3514, 5798)]