20239312

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 40477320

約数和(自身を除く): 20238008

約数列:

[1, 2, 4, 8, 16, 61, 89, 122, 178, 233, 244, 356, 466, 488, 712, 932, 976, 1424, 1864, 3728, 5429, 10858, 14213, 20737, 21716, 28426, 41474, 43432, 56852, 82948, 86864, 113704, 165896, 227408, 331792, 1264957, 2529914, 5059828, 10119656, 20239312]

約数ペア:

[(1, 20239312), (2, 10119656), (4, 5059828), (8, 2529914), (16, 1264957), (61, 331792), (89, 227408), (122, 165896), (178, 113704), (233, 86864), (244, 82948), (356, 56852), (466, 43432), (488, 41474), (712, 28426), (932, 21716), (976, 20737), (1424, 14213), (1864, 10858), (3728, 5429)]