20403680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11593}}^1$

素因数の和:11619

約数の個数: 48

約数和(自身を含む): 52590384

約数和(自身を除く): 32186704

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11593, 23186, 46372, 57965, 92744, 115930, 127523, 185488, 231860, 255046, 370976, 463720, 510092, 637615, 927440, 1020184, 1275230, 1854880, 2040368, 2550460, 4080736, 5100920, 10201840, 20403680]

約数ペア:

[(1, 20403680), (2, 10201840), (4, 5100920), (5, 4080736), (8, 2550460), (10, 2040368), (11, 1854880), (16, 1275230), (20, 1020184), (22, 927440), (32, 637615), (40, 510092), (44, 463720), (55, 370976), (80, 255046), (88, 231860), (110, 185488), (160, 127523), (176, 115930), (220, 92744), (352, 57965), (440, 46372), (880, 23186), (1760, 11593)]