51561840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19531}}^1$

素因数の和:19558

約数の個数: 80

約数和(自身を含む): 174381696

約数和(自身を除く): 122819856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 19531, 39062, 58593, 78124, 97655, 117186, 156248, 195310, 214841, 234372, 292965, 312496, 390620, 429682, 468744, 585930, 644523, 781240, 859364, 937488, 1074205, 1171860, 1289046, 1562480, 1718728, 2148410, 2343720, 2578092, 3222615, 3437456, 4296820, 4687440, 5156184, 6445230, 8593640, 10312368, 12890460, 17187280, 25780920, 51561840]

約数ペア:

[(1, 51561840), (2, 25780920), (3, 17187280), (4, 12890460), (5, 10312368), (6, 8593640), (8, 6445230), (10, 5156184), (11, 4687440), (12, 4296820), (15, 3437456), (16, 3222615), (20, 2578092), (22, 2343720), (24, 2148410), (30, 1718728), (33, 1562480), (40, 1289046), (44, 1171860), (48, 1074205), (55, 937488), (60, 859364), (66, 781240), (80, 644523), (88, 585930), (110, 468744), (120, 429682), (132, 390620), (165, 312496), (176, 292965), (220, 234372), (240, 214841), (264, 195310), (330, 156248), (440, 117186), (528, 97655), (660, 78124), (880, 58593), (1320, 39062), (2640, 19531)]