1905267440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{5527}}^1$

素因数の和:5710

約数の個数: 80

約数和(自身を含む): 4606371840

約数和(自身を除く): 2701104400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 248, 278, 310, 496, 556, 620, 695, 1112, 1240, 1390, 2224, 2480, 2780, 4309, 5527, 5560, 8618, 11054, 11120, 17236, 21545, 22108, 27635, 34472, 43090, 44216, 55270, 68944, 86180, 88432, 110540, 171337, 172360, 221080, 342674, 344720, 442160, 685348, 768253, 856685, 1370696, 1536506, 1713370, 2741392, 3073012, 3426740, 3841265, 6146024, 6853480, 7682530, 12292048, 13706960, 15365060, 23815843, 30730120, 47631686, 61460240, 95263372, 119079215, 190526744, 238158430, 381053488, 476316860, 952633720, 1905267440]

約数ペア:

[(1, 1905267440), (2, 952633720), (4, 476316860), (5, 381053488), (8, 238158430), (10, 190526744), (16, 119079215), (20, 95263372), (31, 61460240), (40, 47631686), (62, 30730120), (80, 23815843), (124, 15365060), (139, 13706960), (155, 12292048), (248, 7682530), (278, 6853480), (310, 6146024), (496, 3841265), (556, 3426740), (620, 3073012), (695, 2741392), (1112, 1713370), (1240, 1536506), (1390, 1370696), (2224, 856685), (2480, 768253), (2780, 685348), (4309, 442160), (5527, 344720), (5560, 342674), (8618, 221080), (11054, 172360), (11120, 171337), (17236, 110540), (21545, 88432), (22108, 86180), (27635, 68944), (34472, 55270), (43090, 44216)]