20193899480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{406807}}^1$

素因数の和:406908

約数の個数: 64

約数和(自身を含む): 48768143040

約数和(自身を除く): 28574243560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 584, 680, 730, 1241, 1460, 2482, 2920, 4964, 6205, 9928, 12410, 24820, 49640, 406807, 813614, 1627228, 2034035, 3254456, 4068070, 6915719, 8136140, 13831438, 16272280, 27662876, 29696911, 34578595, 55325752, 59393822, 69157190, 118787644, 138314380, 148484555, 237575288, 276628760, 296969110, 504847487, 593938220, 1009694974, 1187876440, 2019389948, 2524237435, 4038779896, 5048474870, 10096949740, 20193899480]

約数ペア:

[(1, 20193899480), (2, 10096949740), (4, 5048474870), (5, 4038779896), (8, 2524237435), (10, 2019389948), (17, 1187876440), (20, 1009694974), (34, 593938220), (40, 504847487), (68, 296969110), (73, 276628760), (85, 237575288), (136, 148484555), (146, 138314380), (170, 118787644), (292, 69157190), (340, 59393822), (365, 55325752), (584, 34578595), (680, 29696911), (730, 27662876), (1241, 16272280), (1460, 13831438), (2482, 8136140), (2920, 6915719), (4964, 4068070), (6205, 3254456), (9928, 2034035), (12410, 1627228), (24820, 813614), (49640, 406807)]