19925120

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 48176640

約数和(自身を除く): 28251520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 191, 320, 326, 382, 640, 652, 764, 815, 955, 1304, 1528, 1630, 1910, 2608, 3056, 3260, 3820, 5216, 6112, 6520, 7640, 10432, 12224, 13040, 15280, 20864, 24448, 26080, 30560, 31133, 52160, 61120, 62266, 104320, 122240, 124532, 155665, 249064, 311330, 498128, 622660, 996256, 1245320, 1992512, 2490640, 3985024, 4981280, 9962560, 19925120]

約数ペア:

[(1, 19925120), (2, 9962560), (4, 4981280), (5, 3985024), (8, 2490640), (10, 1992512), (16, 1245320), (20, 996256), (32, 622660), (40, 498128), (64, 311330), (80, 249064), (128, 155665), (160, 124532), (163, 122240), (191, 104320), (320, 62266), (326, 61120), (382, 52160), (640, 31133), (652, 30560), (764, 26080), (815, 24448), (955, 20864), (1304, 15280), (1528, 13040), (1630, 12224), (1910, 10432), (2608, 7640), (3056, 6520), (3260, 6112), (3820, 5216)]