20514870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 160

約数和(自身を含む): 61332480

約数和(自身を除く): 40817610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 31, 38, 43, 45, 54, 57, 62, 81, 86, 90, 93, 95, 114, 129, 135, 155, 162, 171, 186, 190, 215, 258, 270, 279, 285, 310, 342, 387, 405, 430, 465, 513, 558, 570, 589, 645, 774, 810, 817, 837, 855, 930, 1026, 1161, 1178, 1290, 1333, 1395, 1539, 1634, 1674, 1710, 1767, 1935, 2322, 2451, 2511, 2565, 2666, 2790, 2945, 3078, 3483, 3534, 3870, 3999, 4085, 4185, 4902, 5022, 5130, 5301, 5805, 5890, 6665, 6966, 7353, 7695, 7998, 8170, 8370, 8835, 10602, 11610, 11997, 12255, 12555, 13330, 14706, 15390, 15903, 17415, 17670, 19995, 22059, 23994, 24510, 25110, 25327, 26505, 31806, 34830, 35991, 36765, 39990, 44118, 47709, 50654, 53010, 59985, 66177, 71982, 73530, 75981, 79515, 95418, 107973, 110295, 119970, 126635, 132354, 151962, 159030, 179955, 215946, 220590, 227943, 238545, 253270, 330885, 359910, 379905, 455886, 477090, 539865, 661770, 683829, 759810, 1079730, 1139715, 1367658, 2051487, 2279430, 3419145, 4102974, 6838290, 10257435, 20514870]

約数ペア:

[(1, 20514870), (2, 10257435), (3, 6838290), (5, 4102974), (6, 3419145), (9, 2279430), (10, 2051487), (15, 1367658), (18, 1139715), (19, 1079730), (27, 759810), (30, 683829), (31, 661770), (38, 539865), (43, 477090), (45, 455886), (54, 379905), (57, 359910), (62, 330885), (81, 253270), (86, 238545), (90, 227943), (93, 220590), (95, 215946), (114, 179955), (129, 159030), (135, 151962), (155, 132354), (162, 126635), (171, 119970), (186, 110295), (190, 107973), (215, 95418), (258, 79515), (270, 75981), (279, 73530), (285, 71982), (310, 66177), (342, 59985), (387, 53010), (405, 50654), (430, 47709), (465, 44118), (513, 39990), (558, 36765), (570, 35991), (589, 34830), (645, 31806), (774, 26505), (810, 25327), (817, 25110), (837, 24510), (855, 23994), (930, 22059), (1026, 19995), (1161, 17670), (1178, 17415), (1290, 15903), (1333, 15390), (1395, 14706), (1539, 13330), (1634, 12555), (1674, 12255), (1710, 11997), (1767, 11610), (1935, 10602), (2322, 8835), (2451, 8370), (2511, 8170), (2565, 7998), (2666, 7695), (2790, 7353), (2945, 6966), (3078, 6665), (3483, 5890), (3534, 5805), (3870, 5301), (3999, 5130), (4085, 5022), (4185, 4902)]