20802172804

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1\times {\mathrm{25357}}^1$

素因数の和:25804

約数の個数: 48

約数和(自身を含む): 42226547328

約数和(自身を除く): 21424374524

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 353, 581, 706, 1162, 1412, 2324, 2471, 4942, 9884, 25357, 29299, 50714, 58598, 101428, 117196, 177499, 205093, 354998, 410186, 709996, 820372, 2104631, 4209262, 8418524, 8951021, 14732417, 17902042, 29464834, 35804084, 58929668, 62657147, 125314294, 250628588, 742934743, 1485869486, 2971738972, 5200543201, 10401086402, 20802172804]

約数ペア:

[(1, 20802172804), (2, 10401086402), (4, 5200543201), (7, 2971738972), (14, 1485869486), (28, 742934743), (83, 250628588), (166, 125314294), (332, 62657147), (353, 58929668), (581, 35804084), (706, 29464834), (1162, 17902042), (1412, 14732417), (2324, 8951021), (2471, 8418524), (4942, 4209262), (9884, 2104631), (25357, 820372), (29299, 709996), (50714, 410186), (58598, 354998), (101428, 205093), (117196, 177499)]