20899767896

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{248641}}^1$

素因数の和:248752

約数の個数: 64

約数和(自身を含む): 47739264000

約数和(自身を除く): 26839496104

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 79, 133, 152, 158, 266, 316, 532, 553, 632, 1064, 1106, 1501, 2212, 3002, 4424, 6004, 10507, 12008, 21014, 42028, 84056, 248641, 497282, 994564, 1740487, 1989128, 3480974, 4724179, 6961948, 9448358, 13923896, 18896716, 19642639, 33069253, 37793432, 39285278, 66138506, 78570556, 132277012, 137498473, 157141112, 264554024, 274996946, 373210141, 549993892, 746420282, 1099987784, 1492840564, 2612470987, 2985681128, 5224941974, 10449883948, 20899767896]

約数ペア:

[(1, 20899767896), (2, 10449883948), (4, 5224941974), (7, 2985681128), (8, 2612470987), (14, 1492840564), (19, 1099987784), (28, 746420282), (38, 549993892), (56, 373210141), (76, 274996946), (79, 264554024), (133, 157141112), (152, 137498473), (158, 132277012), (266, 78570556), (316, 66138506), (532, 39285278), (553, 37793432), (632, 33069253), (1064, 19642639), (1106, 18896716), (1501, 13923896), (2212, 9448358), (3002, 6961948), (4424, 4724179), (6004, 3480974), (10507, 1989128), (12008, 1740487), (21014, 994564), (42028, 497282), (84056, 248641)]