247745180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{21031}}^1$

素因数の和:21090

約数の個数: 48

約数和(自身を含む): 565340160

約数和(自身を除く): 317594980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 21031, 42062, 84124, 105155, 210310, 399589, 420620, 651961, 799178, 1303922, 1598356, 1997945, 2607844, 3259805, 3995890, 6519610, 7991780, 12387259, 13039220, 24774518, 49549036, 61936295, 123872590, 247745180]

約数ペア:

[(1, 247745180), (2, 123872590), (4, 61936295), (5, 49549036), (10, 24774518), (19, 13039220), (20, 12387259), (31, 7991780), (38, 6519610), (62, 3995890), (76, 3259805), (95, 2607844), (124, 1997945), (155, 1598356), (190, 1303922), (310, 799178), (380, 651961), (589, 420620), (620, 399589), (1178, 210310), (2356, 105155), (2945, 84124), (5890, 42062), (11780, 21031)]