19768640

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:559

約数の個数: 56

約数和(自身を含む): 47487840

約数和(自身を除く): 27719200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 379, 652, 758, 815, 1304, 1516, 1630, 1895, 2608, 3032, 3260, 3790, 5216, 6064, 6520, 7580, 10432, 12128, 13040, 15160, 24256, 26080, 30320, 52160, 60640, 61777, 121280, 123554, 247108, 308885, 494216, 617770, 988432, 1235540, 1976864, 2471080, 3953728, 4942160, 9884320, 19768640]

約数ペア:

[(1, 19768640), (2, 9884320), (4, 4942160), (5, 3953728), (8, 2471080), (10, 1976864), (16, 1235540), (20, 988432), (32, 617770), (40, 494216), (64, 308885), (80, 247108), (160, 123554), (163, 121280), (320, 61777), (326, 60640), (379, 52160), (652, 30320), (758, 26080), (815, 24256), (1304, 15160), (1516, 13040), (1630, 12128), (1895, 10432), (2608, 7580), (3032, 6520), (3260, 6064), (3790, 5216)]