20123687980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{379549}}^1$

素因数の和:379810

約数の個数: 48

約数和(自身を含む): 46292954400

約数和(自身を除く): 26169266420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 482, 964, 1205, 2410, 2651, 4820, 5302, 10604, 13255, 26510, 53020, 379549, 759098, 1518196, 1897745, 3795490, 4175039, 7590980, 8350078, 16700156, 20875195, 41750390, 83500780, 91471309, 182942618, 365885236, 457356545, 914713090, 1006184399, 1829426180, 2012368798, 4024737596, 5030921995, 10061843990, 20123687980]

約数ペア:

[(1, 20123687980), (2, 10061843990), (4, 5030921995), (5, 4024737596), (10, 2012368798), (11, 1829426180), (20, 1006184399), (22, 914713090), (44, 457356545), (55, 365885236), (110, 182942618), (220, 91471309), (241, 83500780), (482, 41750390), (964, 20875195), (1205, 16700156), (2410, 8350078), (2651, 7590980), (4820, 4175039), (5302, 3795490), (10604, 1897745), (13255, 1518196), (26510, 759098), (53020, 379549)]