20803040

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5653}}^1$

素因数の和:5691

約数の個数: 48

約数和(自身を含む): 51293088

約数和(自身を除く): 30490048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5653, 11306, 22612, 28265, 45224, 56530, 90448, 113060, 130019, 180896, 226120, 260038, 452240, 520076, 650095, 904480, 1040152, 1300190, 2080304, 2600380, 4160608, 5200760, 10401520, 20803040]

約数ペア:

[(1, 20803040), (2, 10401520), (4, 5200760), (5, 4160608), (8, 2600380), (10, 2080304), (16, 1300190), (20, 1040152), (23, 904480), (32, 650095), (40, 520076), (46, 452240), (80, 260038), (92, 226120), (115, 180896), (160, 130019), (184, 113060), (230, 90448), (368, 56530), (460, 45224), (736, 28265), (920, 22612), (1840, 11306), (3680, 5653)]