20680770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2211

約数の個数: 64

約数和(自身を含む): 56039040

約数和(自身を除く): 35358270

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 2161, 3190, 4322, 4785, 6483, 9570, 10805, 12966, 21610, 23771, 32415, 47542, 62669, 64830, 71313, 118855, 125338, 142626, 188007, 237710, 313345, 356565, 376014, 626690, 689359, 713130, 940035, 1378718, 1880070, 2068077, 3446795, 4136154, 6893590, 10340385, 20680770]

約数ペア:

[(1, 20680770), (2, 10340385), (3, 6893590), (5, 4136154), (6, 3446795), (10, 2068077), (11, 1880070), (15, 1378718), (22, 940035), (29, 713130), (30, 689359), (33, 626690), (55, 376014), (58, 356565), (66, 313345), (87, 237710), (110, 188007), (145, 142626), (165, 125338), (174, 118855), (290, 71313), (319, 64830), (330, 62669), (435, 47542), (638, 32415), (870, 23771), (957, 21610), (1595, 12966), (1914, 10805), (2161, 9570), (3190, 6483), (4322, 4785)]