26826580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2080

約数の個数: 48

約数和(自身を含む): 62496000

約数和(自身を除く): 35669420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1999, 2684, 3355, 3998, 6710, 7996, 9995, 13420, 19990, 21989, 39980, 43978, 87956, 109945, 121939, 219890, 243878, 439780, 487756, 609695, 1219390, 1341329, 2438780, 2682658, 5365316, 6706645, 13413290, 26826580]

約数ペア:

[(1, 26826580), (2, 13413290), (4, 6706645), (5, 5365316), (10, 2682658), (11, 2438780), (20, 1341329), (22, 1219390), (44, 609695), (55, 487756), (61, 439780), (110, 243878), (122, 219890), (220, 121939), (244, 109945), (305, 87956), (610, 43978), (671, 39980), (1220, 21989), (1342, 19990), (1999, 13420), (2684, 9995), (3355, 7996), (3998, 6710)]