19912857568

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{443533}}^1$

素因数の和:443627

約数の個数: 48

約数和(自身を含む): 41578651296

約数和(自身を除く): 21665793728

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 92, 122, 184, 244, 368, 488, 736, 976, 1403, 1952, 2806, 5612, 11224, 22448, 44896, 443533, 887066, 1774132, 3548264, 7096528, 10201259, 14193056, 20402518, 27055513, 40805036, 54111026, 81610072, 108222052, 163220144, 216444104, 326440288, 432888208, 622276799, 865776416, 1244553598, 2489107196, 4978214392, 9956428784, 19912857568]

約数ペア:

[(1, 19912857568), (2, 9956428784), (4, 4978214392), (8, 2489107196), (16, 1244553598), (23, 865776416), (32, 622276799), (46, 432888208), (61, 326440288), (92, 216444104), (122, 163220144), (184, 108222052), (244, 81610072), (368, 54111026), (488, 40805036), (736, 27055513), (976, 20402518), (1403, 14193056), (1952, 10201259), (2806, 7096528), (5612, 3548264), (11224, 1774132), (22448, 887066), (44896, 443533)]