681775689

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 1125273600

約数和(自身を除く): 443497911

約数列:

[1, 3, 7, 19, 21, 57, 73, 89, 133, 219, 263, 267, 399, 511, 623, 789, 1387, 1533, 1691, 1841, 1869, 4161, 4997, 5073, 5523, 6497, 9709, 11837, 14991, 19199, 19491, 23407, 29127, 34979, 35511, 45479, 57597, 70221, 104937, 123443, 134393, 136437, 163849, 364781, 370329, 403179, 444733, 491547, 864101, 1094343, 1334199, 1708711, 2553467, 2592303, 3113131, 5126133, 7660401, 9339393, 11960977, 32465509, 35882931, 97396527, 227258563, 681775689]

約数ペア:

[(1, 681775689), (3, 227258563), (7, 97396527), (19, 35882931), (21, 32465509), (57, 11960977), (73, 9339393), (89, 7660401), (133, 5126133), (219, 3113131), (263, 2592303), (267, 2553467), (399, 1708711), (511, 1334199), (623, 1094343), (789, 864101), (1387, 491547), (1533, 444733), (1691, 403179), (1841, 370329), (1869, 364781), (4161, 163849), (4997, 136437), (5073, 134393), (5523, 123443), (6497, 104937), (9709, 70221), (11837, 57597), (14991, 45479), (19199, 35511), (19491, 34979), (23407, 29127)]