20440140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1187}}^1$

素因数の和:1247

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 46620084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 164, 205, 210, 246, 287, 410, 420, 492, 574, 615, 820, 861, 1148, 1187, 1230, 1435, 1722, 2374, 2460, 2870, 3444, 3561, 4305, 4748, 5740, 5935, 7122, 8309, 8610, 11870, 14244, 16618, 17220, 17805, 23740, 24927, 33236, 35610, 41545, 48667, 49854, 71220, 83090, 97334, 99708, 124635, 146001, 166180, 194668, 243335, 249270, 292002, 340669, 486670, 498540, 584004, 681338, 730005, 973340, 1022007, 1362676, 1460010, 1703345, 2044014, 2920020, 3406690, 4088028, 5110035, 6813380, 10220070, 20440140]

約数ペア:

[(1, 20440140), (2, 10220070), (3, 6813380), (4, 5110035), (5, 4088028), (6, 3406690), (7, 2920020), (10, 2044014), (12, 1703345), (14, 1460010), (15, 1362676), (20, 1022007), (21, 973340), (28, 730005), (30, 681338), (35, 584004), (41, 498540), (42, 486670), (60, 340669), (70, 292002), (82, 249270), (84, 243335), (105, 194668), (123, 166180), (140, 146001), (164, 124635), (205, 99708), (210, 97334), (246, 83090), (287, 71220), (410, 49854), (420, 48667), (492, 41545), (574, 35610), (615, 33236), (820, 24927), (861, 23740), (1148, 17805), (1187, 17220), (1230, 16618), (1435, 14244), (1722, 11870), (2374, 8610), (2460, 8309), (2870, 7122), (3444, 5935), (3561, 5740), (4305, 4748)]