16378240

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 39645360

約数和(自身を除く): 23267120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 163, 314, 320, 326, 628, 640, 652, 785, 815, 1256, 1304, 1570, 1630, 2512, 2608, 3140, 3260, 5024, 5216, 6280, 6520, 10048, 10432, 12560, 13040, 20096, 20864, 25120, 25591, 26080, 50240, 51182, 52160, 100480, 102364, 104320, 127955, 204728, 255910, 409456, 511820, 818912, 1023640, 1637824, 2047280, 3275648, 4094560, 8189120, 16378240]

約数ペア:

[(1, 16378240), (2, 8189120), (4, 4094560), (5, 3275648), (8, 2047280), (10, 1637824), (16, 1023640), (20, 818912), (32, 511820), (40, 409456), (64, 255910), (80, 204728), (128, 127955), (157, 104320), (160, 102364), (163, 100480), (314, 52160), (320, 51182), (326, 50240), (628, 26080), (640, 25591), (652, 25120), (785, 20864), (815, 20096), (1256, 13040), (1304, 12560), (1570, 10432), (1630, 10048), (2512, 6520), (2608, 6280), (3140, 5216), (3260, 5024)]