1971641375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{33347}}^1$

素因数の和:33416

約数の個数: 32

約数和(自身を含む): 2746808064

約数和(自身を除く): 775166689

約数列:

[1, 5, 11, 25, 43, 55, 125, 215, 275, 473, 1075, 1375, 2365, 5375, 11825, 33347, 59125, 166735, 366817, 833675, 1433921, 1834085, 4168375, 7169605, 9170425, 15773131, 35848025, 45852125, 78865655, 179240125, 394328275, 1971641375]

約数ペア:

[(1, 1971641375), (5, 394328275), (11, 179240125), (25, 78865655), (43, 45852125), (55, 35848025), (125, 15773131), (215, 9170425), (275, 7169605), (473, 4168375), (1075, 1834085), (1375, 1433921), (2365, 833675), (5375, 366817), (11825, 166735), (33347, 59125)]