20131980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 44218740

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 47, 55, 59, 60, 66, 94, 110, 118, 121, 132, 141, 165, 177, 188, 220, 235, 236, 242, 282, 295, 330, 354, 363, 470, 484, 517, 564, 590, 605, 649, 660, 705, 708, 726, 885, 940, 1034, 1180, 1210, 1298, 1410, 1452, 1551, 1770, 1815, 1947, 2068, 2420, 2585, 2596, 2773, 2820, 3102, 3245, 3540, 3630, 3894, 5170, 5546, 5687, 6204, 6490, 7139, 7260, 7755, 7788, 8319, 9735, 10340, 11092, 11374, 12980, 13865, 14278, 15510, 16638, 17061, 19470, 21417, 22748, 27730, 28435, 28556, 30503, 31020, 33276, 34122, 35695, 38940, 41595, 42834, 55460, 56870, 61006, 68244, 71390, 83190, 85305, 85668, 91509, 107085, 113740, 122012, 142780, 152515, 166380, 170610, 183018, 214170, 305030, 335533, 341220, 366036, 428340, 457545, 610060, 671066, 915090, 1006599, 1342132, 1677665, 1830180, 2013198, 3355330, 4026396, 5032995, 6710660, 10065990, 20131980]

約数ペア:

[(1, 20131980), (2, 10065990), (3, 6710660), (4, 5032995), (5, 4026396), (6, 3355330), (10, 2013198), (11, 1830180), (12, 1677665), (15, 1342132), (20, 1006599), (22, 915090), (30, 671066), (33, 610060), (44, 457545), (47, 428340), (55, 366036), (59, 341220), (60, 335533), (66, 305030), (94, 214170), (110, 183018), (118, 170610), (121, 166380), (132, 152515), (141, 142780), (165, 122012), (177, 113740), (188, 107085), (220, 91509), (235, 85668), (236, 85305), (242, 83190), (282, 71390), (295, 68244), (330, 61006), (354, 56870), (363, 55460), (470, 42834), (484, 41595), (517, 38940), (564, 35695), (590, 34122), (605, 33276), (649, 31020), (660, 30503), (705, 28556), (708, 28435), (726, 27730), (885, 22748), (940, 21417), (1034, 19470), (1180, 17061), (1210, 16638), (1298, 15510), (1410, 14278), (1452, 13865), (1551, 12980), (1770, 11374), (1815, 11092), (1947, 10340), (2068, 9735), (2420, 8319), (2585, 7788), (2596, 7755), (2773, 7260), (2820, 7139), (3102, 6490), (3245, 6204), (3540, 5687), (3630, 5546), (3894, 5170)]