20645240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6703}}^1$

素因数の和:6732

約数の個数: 64

約数和(自身を含む): 57922560

約数和(自身を除く): 37277320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6703, 13406, 26812, 33515, 46921, 53624, 67030, 73733, 93842, 134060, 147466, 187684, 234605, 268120, 294932, 368665, 375368, 469210, 516131, 589864, 737330, 938420, 1032262, 1474660, 1876840, 2064524, 2580655, 2949320, 4129048, 5161310, 10322620, 20645240]

約数ペア:

[(1, 20645240), (2, 10322620), (4, 5161310), (5, 4129048), (7, 2949320), (8, 2580655), (10, 2064524), (11, 1876840), (14, 1474660), (20, 1032262), (22, 938420), (28, 737330), (35, 589864), (40, 516131), (44, 469210), (55, 375368), (56, 368665), (70, 294932), (77, 268120), (88, 234605), (110, 187684), (140, 147466), (154, 134060), (220, 93842), (280, 73733), (308, 67030), (385, 53624), (440, 46921), (616, 33515), (770, 26812), (1540, 13406), (3080, 6703)]