71646820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2521}}^1$

素因数の和:2573

約数の個数: 72

約数和(自身を含む): 181130040

約数和(自身を除く): 109483220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2521, 2842, 4060, 5042, 5684, 7105, 10084, 12605, 14210, 17647, 25210, 28420, 35294, 50420, 70588, 73109, 88235, 123529, 146218, 176470, 247058, 292436, 352940, 365545, 494116, 511763, 617645, 731090, 1023526, 1235290, 1462180, 2047052, 2470580, 2558815, 3582341, 5117630, 7164682, 10235260, 14329364, 17911705, 35823410, 71646820]

約数ペア:

[(1, 71646820), (2, 35823410), (4, 17911705), (5, 14329364), (7, 10235260), (10, 7164682), (14, 5117630), (20, 3582341), (28, 2558815), (29, 2470580), (35, 2047052), (49, 1462180), (58, 1235290), (70, 1023526), (98, 731090), (116, 617645), (140, 511763), (145, 494116), (196, 365545), (203, 352940), (245, 292436), (290, 247058), (406, 176470), (490, 146218), (580, 123529), (812, 88235), (980, 73109), (1015, 70588), (1421, 50420), (2030, 35294), (2521, 28420), (2842, 25210), (4060, 17647), (5042, 14210), (5684, 12605), (7105, 10084)]