20755260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1721}}^1$

素因数の和:1803

約数の個数: 72

約数和(自身を含む): 63934416

約数和(自身を除く): 43179156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 1721, 2010, 2412, 3015, 3442, 4020, 5163, 6030, 6884, 8605, 10326, 12060, 15489, 17210, 20652, 25815, 30978, 34420, 51630, 61956, 77445, 103260, 115307, 154890, 230614, 309780, 345921, 461228, 576535, 691842, 1037763, 1153070, 1383684, 1729605, 2075526, 2306140, 3459210, 4151052, 5188815, 6918420, 10377630, 20755260]

約数ペア:

[(1, 20755260), (2, 10377630), (3, 6918420), (4, 5188815), (5, 4151052), (6, 3459210), (9, 2306140), (10, 2075526), (12, 1729605), (15, 1383684), (18, 1153070), (20, 1037763), (30, 691842), (36, 576535), (45, 461228), (60, 345921), (67, 309780), (90, 230614), (134, 154890), (180, 115307), (201, 103260), (268, 77445), (335, 61956), (402, 51630), (603, 34420), (670, 30978), (804, 25815), (1005, 20652), (1206, 17210), (1340, 15489), (1721, 12060), (2010, 10326), (2412, 8605), (3015, 6884), (3442, 6030), (4020, 5163)]