498940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 1199520

約数和(自身を除く): 700580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 101, 130, 190, 202, 247, 260, 380, 404, 494, 505, 988, 1010, 1235, 1313, 1919, 2020, 2470, 2626, 3838, 4940, 5252, 6565, 7676, 9595, 13130, 19190, 24947, 26260, 38380, 49894, 99788, 124735, 249470, 498940]

約数ペア:

[(1, 498940), (2, 249470), (4, 124735), (5, 99788), (10, 49894), (13, 38380), (19, 26260), (20, 24947), (26, 19190), (38, 13130), (52, 9595), (65, 7676), (76, 6565), (95, 5252), (101, 4940), (130, 3838), (190, 2626), (202, 2470), (247, 2020), (260, 1919), (380, 1313), (404, 1235), (494, 1010), (505, 988)]