18835740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1$

素因数の和:190

約数の個数: 240

約数和(自身を含む): 74156544

約数和(自身を除く): 55320804

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, 151, 154, 162, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 302, 308, 315, 324, 330, 378, 385, 396, 405, 420, 453, 462, 495, 540, 567, 594, 604, 630, 660, 693, 755, 756, 770, 810, 891, 906, 924, 945, 990, 1057, 1134, 1155, 1188, 1260, 1359, 1386, 1485, 1510, 1540, 1620, 1661, 1782, 1812, 1890, 1980, 2079, 2114, 2265, 2268, 2310, 2718, 2772, 2835, 2970, 3020, 3171, 3322, 3465, 3564, 3780, 4077, 4158, 4228, 4455, 4530, 4620, 4983, 5285, 5436, 5670, 5940, 6237, 6342, 6644, 6795, 6930, 8154, 8305, 8316, 8910, 9060, 9513, 9966, 10395, 10570, 11340, 11627, 12231, 12474, 12684, 13590, 13860, 14949, 15855, 16308, 16610, 17820, 19026, 19932, 20385, 20790, 21140, 23254, 24462, 24915, 24948, 27180, 28539, 29898, 31185, 31710, 33220, 34881, 38052, 40770, 41580, 44847, 46508, 47565, 48924, 49830, 57078, 58135, 59796, 61155, 62370, 63420, 69762, 74745, 81540, 85617, 89694, 95130, 99660, 104643, 114156, 116270, 122310, 124740, 134541, 139524, 142695, 149490, 171234, 174405, 179388, 190260, 209286, 224235, 232540, 244620, 269082, 285390, 298980, 313929, 342468, 348810, 418572, 428085, 448470, 523215, 538164, 570780, 627858, 672705, 697620, 856170, 896940, 941787, 1046430, 1255716, 1345410, 1569645, 1712340, 1883574, 2092860, 2690820, 3139290, 3767148, 4708935, 6278580, 9417870, 18835740]

約数ペア:

[(1, 18835740), (2, 9417870), (3, 6278580), (4, 4708935), (5, 3767148), (6, 3139290), (7, 2690820), (9, 2092860), (10, 1883574), (11, 1712340), (12, 1569645), (14, 1345410), (15, 1255716), (18, 1046430), (20, 941787), (21, 896940), (22, 856170), (27, 697620), (28, 672705), (30, 627858), (33, 570780), (35, 538164), (36, 523215), (42, 448470), (44, 428085), (45, 418572), (54, 348810), (55, 342468), (60, 313929), (63, 298980), (66, 285390), (70, 269082), (77, 244620), (81, 232540), (84, 224235), (90, 209286), (99, 190260), (105, 179388), (108, 174405), (110, 171234), (126, 149490), (132, 142695), (135, 139524), (140, 134541), (151, 124740), (154, 122310), (162, 116270), (165, 114156), (180, 104643), (189, 99660), (198, 95130), (210, 89694), (220, 85617), (231, 81540), (252, 74745), (270, 69762), (297, 63420), (302, 62370), (308, 61155), (315, 59796), (324, 58135), (330, 57078), (378, 49830), (385, 48924), (396, 47565), (405, 46508), (420, 44847), (453, 41580), (462, 40770), (495, 38052), (540, 34881), (567, 33220), (594, 31710), (604, 31185), (630, 29898), (660, 28539), (693, 27180), (755, 24948), (756, 24915), (770, 24462), (810, 23254), (891, 21140), (906, 20790), (924, 20385), (945, 19932), (990, 19026), (1057, 17820), (1134, 16610), (1155, 16308), (1188, 15855), (1260, 14949), (1359, 13860), (1386, 13590), (1485, 12684), (1510, 12474), (1540, 12231), (1620, 11627), (1661, 11340), (1782, 10570), (1812, 10395), (1890, 9966), (1980, 9513), (2079, 9060), (2114, 8910), (2265, 8316), (2268, 8305), (2310, 8154), (2718, 6930), (2772, 6795), (2835, 6644), (2970, 6342), (3020, 6237), (3171, 5940), (3322, 5670), (3465, 5436), (3564, 5285), (3780, 4983), (4077, 4620), (4158, 4530), (4228, 4455)]