20145128860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3118441}}^1$

素因数の和:3118486

約数の個数: 48

約数和(自身を含む): 47150843040

約数和(自身を除く): 27005714180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 3118441, 6236882, 12473764, 15592205, 31184410, 53013497, 59250379, 62368820, 106026994, 118500758, 212053988, 237001516, 265067485, 296251895, 530134970, 592503790, 1007256443, 1060269940, 1185007580, 2014512886, 4029025772, 5036282215, 10072564430, 20145128860]

約数ペア:

[(1, 20145128860), (2, 10072564430), (4, 5036282215), (5, 4029025772), (10, 2014512886), (17, 1185007580), (19, 1060269940), (20, 1007256443), (34, 592503790), (38, 530134970), (68, 296251895), (76, 265067485), (85, 237001516), (95, 212053988), (170, 118500758), (190, 106026994), (323, 62368820), (340, 59250379), (380, 53013497), (646, 31184410), (1292, 15592205), (1615, 12473764), (3230, 6236882), (6460, 3118441)]