20799656

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19117144

約数列:

[1, 2, 4, 8, 89, 131, 178, 223, 262, 356, 446, 524, 712, 892, 1048, 1784, 11659, 19847, 23318, 29213, 39694, 46636, 58426, 79388, 93272, 116852, 158776, 233704, 2599957, 5199914, 10399828, 20799656]

約数ペア:

[(1, 20799656), (2, 10399828), (4, 5199914), (8, 2599957), (89, 233704), (131, 158776), (178, 116852), (223, 93272), (262, 79388), (356, 58426), (446, 46636), (524, 39694), (712, 29213), (892, 23318), (1048, 19847), (1784, 11659)]