90246680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 210988800

約数和(自身を除く): 120742120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 430, 568, 710, 739, 860, 1420, 1478, 1720, 2840, 2956, 3053, 3695, 5912, 6106, 7390, 12212, 14780, 15265, 24424, 29560, 30530, 31777, 52469, 61060, 63554, 104938, 122120, 127108, 158885, 209876, 254216, 262345, 317770, 419752, 524690, 635540, 1049380, 1271080, 2098760, 2256167, 4512334, 9024668, 11280835, 18049336, 22561670, 45123340, 90246680]

約数ペア:

[(1, 90246680), (2, 45123340), (4, 22561670), (5, 18049336), (8, 11280835), (10, 9024668), (20, 4512334), (40, 2256167), (43, 2098760), (71, 1271080), (86, 1049380), (142, 635540), (172, 524690), (215, 419752), (284, 317770), (344, 262345), (355, 254216), (430, 209876), (568, 158885), (710, 127108), (739, 122120), (860, 104938), (1420, 63554), (1478, 61060), (1720, 52469), (2840, 31777), (2956, 30530), (3053, 29560), (3695, 24424), (5912, 15265), (6106, 14780), (7390, 12212)]