20007856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1$

素因数の和:1537

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 22846544

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1439, 1738, 2878, 3476, 5756, 6952, 11512, 13904, 15829, 23024, 31658, 63316, 113681, 126632, 227362, 253264, 454724, 909448, 1250491, 1818896, 2500982, 5001964, 10003928, 20007856]

約数ペア:

[(1, 20007856), (2, 10003928), (4, 5001964), (8, 2500982), (11, 1818896), (16, 1250491), (22, 909448), (44, 454724), (79, 253264), (88, 227362), (158, 126632), (176, 113681), (316, 63316), (632, 31658), (869, 23024), (1264, 15829), (1439, 13904), (1738, 11512), (2878, 6952), (3476, 5756)]