20865930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{829}}^1\times {\mathrm{839}}^1$

素因数の和:1678

約数の個数: 32

約数和(自身を含む): 50198400

約数和(自身を除く): 29332470

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 829, 839, 1658, 1678, 2487, 2517, 4145, 4195, 4974, 5034, 8290, 8390, 12435, 12585, 24870, 25170, 695531, 1391062, 2086593, 3477655, 4173186, 6955310, 10432965, 20865930]

約数ペア:

[(1, 20865930), (2, 10432965), (3, 6955310), (5, 4173186), (6, 3477655), (10, 2086593), (15, 1391062), (30, 695531), (829, 25170), (839, 24870), (1658, 12585), (1678, 12435), (2487, 8390), (2517, 8290), (4145, 5034), (4195, 4974)]