20329540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 54641664

約数和(自身を除く): 34312124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 307, 308, 385, 430, 473, 602, 614, 770, 860, 946, 1204, 1228, 1505, 1535, 1540, 1892, 2149, 2365, 3010, 3070, 3311, 3377, 4298, 4730, 6020, 6140, 6622, 6754, 8596, 9460, 10745, 13201, 13244, 13508, 16555, 16885, 21490, 23639, 26402, 33110, 33770, 42980, 47278, 52804, 66005, 66220, 67540, 92407, 94556, 118195, 132010, 145211, 184814, 236390, 264020, 290422, 369628, 462035, 472780, 580844, 726055, 924070, 1016477, 1452110, 1848140, 2032954, 2904220, 4065908, 5082385, 10164770, 20329540]

約数ペア:

[(1, 20329540), (2, 10164770), (4, 5082385), (5, 4065908), (7, 2904220), (10, 2032954), (11, 1848140), (14, 1452110), (20, 1016477), (22, 924070), (28, 726055), (35, 580844), (43, 472780), (44, 462035), (55, 369628), (70, 290422), (77, 264020), (86, 236390), (110, 184814), (140, 145211), (154, 132010), (172, 118195), (215, 94556), (220, 92407), (301, 67540), (307, 66220), (308, 66005), (385, 52804), (430, 47278), (473, 42980), (602, 33770), (614, 33110), (770, 26402), (860, 23639), (946, 21490), (1204, 16885), (1228, 16555), (1505, 13508), (1535, 13244), (1540, 13201), (1892, 10745), (2149, 9460), (2365, 8596), (3010, 6754), (3070, 6622), (3311, 6140), (3377, 6020), (4298, 4730)]