261570296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{751}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 562826880

約数和(自身を除く): 301256584

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 197, 221, 394, 442, 751, 788, 884, 1502, 1576, 1768, 2561, 3004, 3349, 5122, 6008, 6698, 9763, 10244, 12767, 13396, 19526, 20488, 25534, 26792, 39052, 43537, 51068, 78104, 87074, 102136, 147947, 165971, 174148, 295894, 331942, 348296, 591788, 663884, 1183576, 1327768, 1923311, 2515099, 3846622, 5030198, 7693244, 10060396, 15386488, 20120792, 32696287, 65392574, 130785148, 261570296]

約数ペア:

[(1, 261570296), (2, 130785148), (4, 65392574), (8, 32696287), (13, 20120792), (17, 15386488), (26, 10060396), (34, 7693244), (52, 5030198), (68, 3846622), (104, 2515099), (136, 1923311), (197, 1327768), (221, 1183576), (394, 663884), (442, 591788), (751, 348296), (788, 331942), (884, 295894), (1502, 174148), (1576, 165971), (1768, 147947), (2561, 102136), (3004, 87074), (3349, 78104), (5122, 51068), (6008, 43537), (6698, 39052), (9763, 26792), (10244, 25534), (12767, 20488), (13396, 19526)]