538854940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{4721}}^1$

素因数の和:5182

約数の個数: 48

約数和(自身を含む): 1221675840

約数和(自身を除く): 682820900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 878, 1756, 2195, 4390, 4721, 5707, 8780, 9442, 11414, 18884, 22828, 23605, 28535, 47210, 57070, 61373, 94420, 114140, 122746, 245492, 306865, 613730, 1227460, 2072519, 4145038, 8290076, 10362595, 20725190, 26942747, 41450380, 53885494, 107770988, 134713735, 269427470, 538854940]

約数ペア:

[(1, 538854940), (2, 269427470), (4, 134713735), (5, 107770988), (10, 53885494), (13, 41450380), (20, 26942747), (26, 20725190), (52, 10362595), (65, 8290076), (130, 4145038), (260, 2072519), (439, 1227460), (878, 613730), (1756, 306865), (2195, 245492), (4390, 122746), (4721, 114140), (5707, 94420), (8780, 61373), (9442, 57070), (11414, 47210), (18884, 28535), (22828, 23605)]