31309740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 240

約数和(自身を含む): 122943744

約数和(自身を除く): 91634004

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 81, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 162, 165, 180, 189, 198, 210, 220, 231, 251, 252, 270, 297, 308, 315, 324, 330, 378, 385, 396, 405, 420, 462, 495, 502, 540, 567, 594, 630, 660, 693, 753, 756, 770, 810, 891, 924, 945, 990, 1004, 1134, 1155, 1188, 1255, 1260, 1386, 1485, 1506, 1540, 1620, 1757, 1782, 1890, 1980, 2079, 2259, 2268, 2310, 2510, 2761, 2772, 2835, 2970, 3012, 3465, 3514, 3564, 3765, 3780, 4158, 4455, 4518, 4620, 5020, 5271, 5522, 5670, 5940, 6237, 6777, 6930, 7028, 7530, 8283, 8316, 8785, 8910, 9036, 10395, 10542, 11044, 11295, 11340, 12474, 13554, 13805, 13860, 15060, 15813, 16566, 17570, 17820, 19327, 20331, 20790, 21084, 22590, 24849, 24948, 26355, 27108, 27610, 31185, 31626, 33132, 33885, 35140, 38654, 40662, 41415, 41580, 45180, 47439, 49698, 52710, 55220, 57981, 62370, 63252, 67770, 74547, 77308, 79065, 81324, 82830, 94878, 96635, 99396, 101655, 105420, 115962, 124245, 124740, 135540, 142317, 149094, 158130, 165660, 173943, 189756, 193270, 203310, 223641, 231924, 237195, 248490, 284634, 289905, 298188, 316260, 347886, 372735, 386540, 406620, 447282, 474390, 496980, 521829, 569268, 579810, 695772, 711585, 745470, 869715, 894564, 948780, 1043658, 1118205, 1159620, 1423170, 1490940, 1565487, 1739430, 2087316, 2236410, 2609145, 2846340, 3130974, 3478860, 4472820, 5218290, 6261948, 7827435, 10436580, 15654870, 31309740]

約数ペア:

[(1, 31309740), (2, 15654870), (3, 10436580), (4, 7827435), (5, 6261948), (6, 5218290), (7, 4472820), (9, 3478860), (10, 3130974), (11, 2846340), (12, 2609145), (14, 2236410), (15, 2087316), (18, 1739430), (20, 1565487), (21, 1490940), (22, 1423170), (27, 1159620), (28, 1118205), (30, 1043658), (33, 948780), (35, 894564), (36, 869715), (42, 745470), (44, 711585), (45, 695772), (54, 579810), (55, 569268), (60, 521829), (63, 496980), (66, 474390), (70, 447282), (77, 406620), (81, 386540), (84, 372735), (90, 347886), (99, 316260), (105, 298188), (108, 289905), (110, 284634), (126, 248490), (132, 237195), (135, 231924), (140, 223641), (154, 203310), (162, 193270), (165, 189756), (180, 173943), (189, 165660), (198, 158130), (210, 149094), (220, 142317), (231, 135540), (251, 124740), (252, 124245), (270, 115962), (297, 105420), (308, 101655), (315, 99396), (324, 96635), (330, 94878), (378, 82830), (385, 81324), (396, 79065), (405, 77308), (420, 74547), (462, 67770), (495, 63252), (502, 62370), (540, 57981), (567, 55220), (594, 52710), (630, 49698), (660, 47439), (693, 45180), (753, 41580), (756, 41415), (770, 40662), (810, 38654), (891, 35140), (924, 33885), (945, 33132), (990, 31626), (1004, 31185), (1134, 27610), (1155, 27108), (1188, 26355), (1255, 24948), (1260, 24849), (1386, 22590), (1485, 21084), (1506, 20790), (1540, 20331), (1620, 19327), (1757, 17820), (1782, 17570), (1890, 16566), (1980, 15813), (2079, 15060), (2259, 13860), (2268, 13805), (2310, 13554), (2510, 12474), (2761, 11340), (2772, 11295), (2835, 11044), (2970, 10542), (3012, 10395), (3465, 9036), (3514, 8910), (3564, 8785), (3765, 8316), (3780, 8283), (4158, 7530), (4455, 7028), (4518, 6930), (4620, 6777), (5020, 6237), (5271, 5940), (5522, 5670)]