20200960

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:643

約数の個数: 80

約数和(自身を含む): 52246656

約数和(自身を除く): 32045696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 607, 640, 832, 1040, 1214, 1280, 1664, 2080, 2428, 2560, 3035, 3328, 4160, 4856, 6070, 6656, 7891, 8320, 9712, 12140, 15782, 16640, 19424, 24280, 31564, 33280, 38848, 39455, 48560, 63128, 77696, 78910, 97120, 126256, 155392, 157820, 194240, 252512, 310784, 315640, 388480, 505024, 631280, 776960, 1010048, 1262560, 1553920, 2020096, 2525120, 4040192, 5050240, 10100480, 20200960]

約数ペア:

[(1, 20200960), (2, 10100480), (4, 5050240), (5, 4040192), (8, 2525120), (10, 2020096), (13, 1553920), (16, 1262560), (20, 1010048), (26, 776960), (32, 631280), (40, 505024), (52, 388480), (64, 315640), (65, 310784), (80, 252512), (104, 194240), (128, 157820), (130, 155392), (160, 126256), (208, 97120), (256, 78910), (260, 77696), (320, 63128), (416, 48560), (512, 39455), (520, 38848), (607, 33280), (640, 31564), (832, 24280), (1040, 19424), (1214, 16640), (1280, 15782), (1664, 12140), (2080, 9712), (2428, 8320), (2560, 7891), (3035, 6656), (3328, 6070), (4160, 4856)]