638418420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{82483}}^1$

素因数の和:82541

約数の個数: 72

約数和(自身を含む): 1981595616

約数和(自身を除く): 1343177196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 82483, 164966, 247449, 329932, 412415, 494898, 742347, 824830, 989796, 1237245, 1484694, 1649660, 2474490, 2969388, 3546769, 3711735, 4948980, 7093538, 7423470, 10640307, 14187076, 14846940, 17733845, 21280614, 31920921, 35467690, 42561228, 53201535, 63841842, 70935380, 106403070, 127683684, 159604605, 212806140, 319209210, 638418420]

約数ペア:

[(1, 638418420), (2, 319209210), (3, 212806140), (4, 159604605), (5, 127683684), (6, 106403070), (9, 70935380), (10, 63841842), (12, 53201535), (15, 42561228), (18, 35467690), (20, 31920921), (30, 21280614), (36, 17733845), (43, 14846940), (45, 14187076), (60, 10640307), (86, 7423470), (90, 7093538), (129, 4948980), (172, 3711735), (180, 3546769), (215, 2969388), (258, 2474490), (387, 1649660), (430, 1484694), (516, 1237245), (645, 989796), (774, 824830), (860, 742347), (1290, 494898), (1548, 412415), (1935, 329932), (2580, 247449), (3870, 164966), (7740, 82483)]