654722140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{3257}}^1$

素因数の和:3331

約数の個数: 72

約数和(自身を含む): 1513406160

約数和(自身を除く): 858684020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 529, 874, 1058, 1748, 2116, 2185, 2645, 3257, 4370, 5290, 6514, 8740, 10051, 10580, 13028, 16285, 20102, 32570, 40204, 50255, 61883, 65140, 74911, 100510, 123766, 149822, 201020, 247532, 299644, 309415, 374555, 618830, 749110, 1237660, 1423309, 1498220, 1722953, 2846618, 3445906, 5693236, 6891812, 7116545, 8614765, 14233090, 17229530, 28466180, 32736107, 34459060, 65472214, 130944428, 163680535, 327361070, 654722140]

約数ペア:

[(1, 654722140), (2, 327361070), (4, 163680535), (5, 130944428), (10, 65472214), (19, 34459060), (20, 32736107), (23, 28466180), (38, 17229530), (46, 14233090), (76, 8614765), (92, 7116545), (95, 6891812), (115, 5693236), (190, 3445906), (230, 2846618), (380, 1722953), (437, 1498220), (460, 1423309), (529, 1237660), (874, 749110), (1058, 618830), (1748, 374555), (2116, 309415), (2185, 299644), (2645, 247532), (3257, 201020), (4370, 149822), (5290, 123766), (6514, 100510), (8740, 74911), (10051, 65140), (10580, 61883), (13028, 50255), (16285, 40204), (20102, 32570)]