215182980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6991}}^1$

素因数の和:7031

約数の個数: 120

約数和(自身を含む): 710666880

約数和(自身を除く): 495483900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 1026, 1140, 1539, 1620, 1710, 2052, 2565, 3078, 3420, 5130, 6156, 6991, 7695, 10260, 13982, 15390, 20973, 27964, 30780, 34955, 41946, 62919, 69910, 83892, 104865, 125838, 132829, 139820, 188757, 209730, 251676, 265658, 314595, 377514, 398487, 419460, 531316, 566271, 629190, 664145, 755028, 796974, 943785, 1132542, 1195461, 1258380, 1328290, 1593948, 1887570, 1992435, 2265084, 2390922, 2656580, 2831355, 3586383, 3775140, 3984870, 4781844, 5662710, 5977305, 7172766, 7969740, 10759149, 11325420, 11954610, 14345532, 17931915, 21518298, 23909220, 35863830, 43036596, 53795745, 71727660, 107591490, 215182980]

約数ペア:

[(1, 215182980), (2, 107591490), (3, 71727660), (4, 53795745), (5, 43036596), (6, 35863830), (9, 23909220), (10, 21518298), (12, 17931915), (15, 14345532), (18, 11954610), (19, 11325420), (20, 10759149), (27, 7969740), (30, 7172766), (36, 5977305), (38, 5662710), (45, 4781844), (54, 3984870), (57, 3775140), (60, 3586383), (76, 2831355), (81, 2656580), (90, 2390922), (95, 2265084), (108, 1992435), (114, 1887570), (135, 1593948), (162, 1328290), (171, 1258380), (180, 1195461), (190, 1132542), (228, 943785), (270, 796974), (285, 755028), (324, 664145), (342, 629190), (380, 566271), (405, 531316), (513, 419460), (540, 398487), (570, 377514), (684, 314595), (810, 265658), (855, 251676), (1026, 209730), (1140, 188757), (1539, 139820), (1620, 132829), (1710, 125838), (2052, 104865), (2565, 83892), (3078, 69910), (3420, 62919), (5130, 41946), (6156, 34955), (6991, 30780), (7695, 27964), (10260, 20973), (13982, 15390)]