2115880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 5171580

約数和(自身を除く): 3055700

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 313, 338, 520, 626, 676, 845, 1252, 1352, 1565, 1690, 2504, 3130, 3380, 4069, 6260, 6760, 8138, 12520, 16276, 20345, 32552, 40690, 52897, 81380, 105794, 162760, 211588, 264485, 423176, 528970, 1057940, 2115880]

約数ペア:

[(1, 2115880), (2, 1057940), (4, 528970), (5, 423176), (8, 264485), (10, 211588), (13, 162760), (20, 105794), (26, 81380), (40, 52897), (52, 40690), (65, 32552), (104, 20345), (130, 16276), (169, 12520), (260, 8138), (313, 6760), (338, 6260), (520, 4069), (626, 3380), (676, 3130), (845, 2504), (1252, 1690), (1352, 1565)]