20629712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1011

約数の個数: 40

約数和(自身を含む): 42437760

約数和(自身を除く): 21808048

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 919, 976, 1403, 1838, 2806, 3676, 5612, 7352, 11224, 14704, 21137, 22448, 42274, 56059, 84548, 112118, 169096, 224236, 338192, 448472, 896944, 1289357, 2578714, 5157428, 10314856, 20629712]

約数ペア:

[(1, 20629712), (2, 10314856), (4, 5157428), (8, 2578714), (16, 1289357), (23, 896944), (46, 448472), (61, 338192), (92, 224236), (122, 169096), (184, 112118), (244, 84548), (368, 56059), (488, 42274), (919, 22448), (976, 21137), (1403, 14704), (1838, 11224), (2806, 7352), (3676, 5612)]