19390580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1663}}^1$

素因数の和:1736

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 25896844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1663, 2332, 2915, 3326, 5830, 6652, 8315, 11660, 16630, 18293, 33260, 36586, 73172, 88139, 91465, 176278, 182930, 352556, 365860, 440695, 881390, 969529, 1762780, 1939058, 3878116, 4847645, 9695290, 19390580]

約数ペア:

[(1, 19390580), (2, 9695290), (4, 4847645), (5, 3878116), (10, 1939058), (11, 1762780), (20, 969529), (22, 881390), (44, 440695), (53, 365860), (55, 352556), (106, 182930), (110, 176278), (212, 91465), (220, 88139), (265, 73172), (530, 36586), (583, 33260), (1060, 18293), (1166, 16630), (1663, 11660), (2332, 8315), (2915, 6652), (3326, 5830)]