19802019975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1217}}^1\times {\mathrm{7481}}^1$

素因数の和:8740

約数の個数: 48

約数和(自身を含む): 33900642720

約数和(自身を除く): 14098622745

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 1217, 2175, 3651, 6085, 7481, 18255, 22443, 30425, 35293, 37405, 91275, 105879, 112215, 176465, 187025, 216949, 529395, 561075, 650847, 882325, 1084745, 2646975, 3254235, 5423725, 9104377, 16271175, 27313131, 45521885, 136565655, 227609425, 264026933, 682828275, 792080799, 1320134665, 3960403995, 6600673325, 19802019975]

約数ペア:

[(1, 19802019975), (3, 6600673325), (5, 3960403995), (15, 1320134665), (25, 792080799), (29, 682828275), (75, 264026933), (87, 227609425), (145, 136565655), (435, 45521885), (725, 27313131), (1217, 16271175), (2175, 9104377), (3651, 5423725), (6085, 3254235), (7481, 2646975), (18255, 1084745), (22443, 882325), (30425, 650847), (35293, 561075), (37405, 529395), (91275, 216949), (105879, 187025), (112215, 176465)]