640547754

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{8831}}^1$

素因数の和:9011

約数の個数: 64

約数和(自身を含む): 1607565312

約数和(自身を除く): 967017558

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 157, 231, 314, 462, 471, 942, 1099, 1727, 2198, 3297, 3454, 5181, 6594, 8831, 10362, 12089, 17662, 24178, 26493, 36267, 52986, 61817, 72534, 97141, 123634, 185451, 194282, 291423, 370902, 582846, 679987, 1359974, 1386467, 2039961, 2772934, 4079922, 4159401, 8318802, 9705269, 15251137, 19410538, 29115807, 30502274, 45753411, 58231614, 91506822, 106757959, 213515918, 320273877, 640547754]

約数ペア:

[(1, 640547754), (2, 320273877), (3, 213515918), (6, 106757959), (7, 91506822), (11, 58231614), (14, 45753411), (21, 30502274), (22, 29115807), (33, 19410538), (42, 15251137), (66, 9705269), (77, 8318802), (154, 4159401), (157, 4079922), (231, 2772934), (314, 2039961), (462, 1386467), (471, 1359974), (942, 679987), (1099, 582846), (1727, 370902), (2198, 291423), (3297, 194282), (3454, 185451), (5181, 123634), (6594, 97141), (8831, 72534), (10362, 61817), (12089, 52986), (17662, 36267), (24178, 26493)]