1922825660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{7817}}^1$

素因数の和:8091

約数の個数: 72

約数和(自身を含む): 4716505584

約数和(自身を除く): 2793679924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 490, 502, 980, 1004, 1255, 1757, 2510, 3514, 5020, 7028, 7817, 8785, 12299, 15634, 17570, 24598, 31268, 35140, 39085, 49196, 54719, 61495, 78170, 109438, 122990, 156340, 218876, 245980, 273595, 383033, 547190, 766066, 1094380, 1532132, 1915165, 1962067, 3830330, 3924134, 7660660, 7848268, 9810335, 13734469, 19620670, 27468938, 39241340, 54937876, 68672345, 96141283, 137344690, 192282566, 274689380, 384565132, 480706415, 961412830, 1922825660]

約数ペア:

[(1, 1922825660), (2, 961412830), (4, 480706415), (5, 384565132), (7, 274689380), (10, 192282566), (14, 137344690), (20, 96141283), (28, 68672345), (35, 54937876), (49, 39241340), (70, 27468938), (98, 19620670), (140, 13734469), (196, 9810335), (245, 7848268), (251, 7660660), (490, 3924134), (502, 3830330), (980, 1962067), (1004, 1915165), (1255, 1532132), (1757, 1094380), (2510, 766066), (3514, 547190), (5020, 383033), (7028, 273595), (7817, 245980), (8785, 218876), (12299, 156340), (15634, 122990), (17570, 109438), (24598, 78170), (31268, 61495), (35140, 54719), (39085, 49196)]