219956480

素因数分解:

$2^8\times 5^1\times {\mathrm{239}}^1\times {\mathrm{719}}^1$

素因数の和:979

約数の個数: 72

約数和(自身を含む): 529804800

約数和(自身を除く): 309848320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 256, 320, 478, 640, 719, 956, 1195, 1280, 1438, 1912, 2390, 2876, 3595, 3824, 4780, 5752, 7190, 7648, 9560, 11504, 14380, 15296, 19120, 23008, 28760, 30592, 38240, 46016, 57520, 61184, 76480, 92032, 115040, 152960, 171841, 184064, 230080, 305920, 343682, 460160, 687364, 859205, 920320, 1374728, 1718410, 2749456, 3436820, 5498912, 6873640, 10997824, 13747280, 21995648, 27494560, 43991296, 54989120, 109978240, 219956480]

約数ペア:

[(1, 219956480), (2, 109978240), (4, 54989120), (5, 43991296), (8, 27494560), (10, 21995648), (16, 13747280), (20, 10997824), (32, 6873640), (40, 5498912), (64, 3436820), (80, 2749456), (128, 1718410), (160, 1374728), (239, 920320), (256, 859205), (320, 687364), (478, 460160), (640, 343682), (719, 305920), (956, 230080), (1195, 184064), (1280, 171841), (1438, 152960), (1912, 115040), (2390, 92032), (2876, 76480), (3595, 61184), (3824, 57520), (4780, 46016), (5752, 38240), (7190, 30592), (7648, 28760), (9560, 23008), (11504, 19120), (14380, 15296)]