20129252480

素因数分解:

$2^7\times 5^1\times {\mathrm{2207}}^1\times {\mathrm{14251}}^1$

素因数の和:16477

約数の個数: 64

約数和(自身を含む): 48146676480

約数和(自身を除く): 28017424000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2207, 4414, 8828, 11035, 14251, 17656, 22070, 28502, 35312, 44140, 57004, 70624, 71255, 88280, 114008, 141248, 142510, 176560, 228016, 282496, 285020, 353120, 456032, 570040, 706240, 912064, 1140080, 1412480, 1824128, 2280160, 4560320, 9120640, 31451957, 62903914, 125807828, 157259785, 251615656, 314519570, 503231312, 629039140, 1006462624, 1258078280, 2012925248, 2516156560, 4025850496, 5032313120, 10064626240, 20129252480]

約数ペア:

[(1, 20129252480), (2, 10064626240), (4, 5032313120), (5, 4025850496), (8, 2516156560), (10, 2012925248), (16, 1258078280), (20, 1006462624), (32, 629039140), (40, 503231312), (64, 314519570), (80, 251615656), (128, 157259785), (160, 125807828), (320, 62903914), (640, 31451957), (2207, 9120640), (4414, 4560320), (8828, 2280160), (11035, 1824128), (14251, 1412480), (17656, 1140080), (22070, 912064), (28502, 706240), (35312, 570040), (44140, 456032), (57004, 353120), (70624, 285020), (71255, 282496), (88280, 228016), (114008, 176560), (141248, 142510)]