20519730

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:91

約数の個数: 240

約数和(自身を含む): 71508096

約数和(自身を除く): 50988366

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 47, 49, 54, 55, 63, 66, 70, 77, 81, 90, 94, 98, 99, 105, 110, 126, 135, 141, 147, 154, 162, 165, 189, 198, 210, 231, 235, 245, 270, 282, 294, 297, 315, 329, 330, 378, 385, 405, 423, 441, 462, 470, 490, 495, 517, 539, 567, 594, 630, 658, 693, 705, 735, 770, 810, 846, 882, 891, 945, 987, 990, 1034, 1078, 1134, 1155, 1269, 1323, 1386, 1410, 1470, 1485, 1551, 1617, 1645, 1782, 1890, 1974, 2079, 2115, 2205, 2303, 2310, 2538, 2585, 2646, 2695, 2835, 2961, 2970, 3102, 3234, 3290, 3465, 3619, 3807, 3969, 4158, 4230, 4410, 4455, 4606, 4653, 4851, 4935, 5170, 5390, 5670, 5922, 6237, 6345, 6615, 6909, 6930, 7238, 7614, 7755, 7938, 8085, 8883, 8910, 9306, 9702, 9870, 10395, 10857, 11515, 12474, 12690, 13230, 13818, 13959, 14553, 14805, 15510, 16170, 17766, 18095, 19035, 19845, 20727, 20790, 21714, 23030, 23265, 24255, 25333, 26649, 27918, 29106, 29610, 31185, 32571, 34545, 36190, 38070, 39690, 41454, 41877, 43659, 44415, 46530, 48510, 50666, 53298, 54285, 62181, 62370, 65142, 69090, 69795, 72765, 75999, 83754, 87318, 88830, 97713, 103635, 108570, 124362, 126665, 133245, 139590, 145530, 151998, 162855, 186543, 195426, 207270, 209385, 218295, 227997, 253330, 266490, 293139, 310905, 325710, 373086, 379995, 418770, 436590, 455994, 488565, 586278, 621810, 683991, 759990, 932715, 977130, 1139985, 1367982, 1465695, 1865430, 2051973, 2279970, 2931390, 3419955, 4103946, 6839910, 10259865, 20519730]

約数ペア:

[(1, 20519730), (2, 10259865), (3, 6839910), (5, 4103946), (6, 3419955), (7, 2931390), (9, 2279970), (10, 2051973), (11, 1865430), (14, 1465695), (15, 1367982), (18, 1139985), (21, 977130), (22, 932715), (27, 759990), (30, 683991), (33, 621810), (35, 586278), (42, 488565), (45, 455994), (47, 436590), (49, 418770), (54, 379995), (55, 373086), (63, 325710), (66, 310905), (70, 293139), (77, 266490), (81, 253330), (90, 227997), (94, 218295), (98, 209385), (99, 207270), (105, 195426), (110, 186543), (126, 162855), (135, 151998), (141, 145530), (147, 139590), (154, 133245), (162, 126665), (165, 124362), (189, 108570), (198, 103635), (210, 97713), (231, 88830), (235, 87318), (245, 83754), (270, 75999), (282, 72765), (294, 69795), (297, 69090), (315, 65142), (329, 62370), (330, 62181), (378, 54285), (385, 53298), (405, 50666), (423, 48510), (441, 46530), (462, 44415), (470, 43659), (490, 41877), (495, 41454), (517, 39690), (539, 38070), (567, 36190), (594, 34545), (630, 32571), (658, 31185), (693, 29610), (705, 29106), (735, 27918), (770, 26649), (810, 25333), (846, 24255), (882, 23265), (891, 23030), (945, 21714), (987, 20790), (990, 20727), (1034, 19845), (1078, 19035), (1134, 18095), (1155, 17766), (1269, 16170), (1323, 15510), (1386, 14805), (1410, 14553), (1470, 13959), (1485, 13818), (1551, 13230), (1617, 12690), (1645, 12474), (1782, 11515), (1890, 10857), (1974, 10395), (2079, 9870), (2115, 9702), (2205, 9306), (2303, 8910), (2310, 8883), (2538, 8085), (2585, 7938), (2646, 7755), (2695, 7614), (2835, 7238), (2961, 6930), (2970, 6909), (3102, 6615), (3234, 6345), (3290, 6237), (3465, 5922), (3619, 5670), (3807, 5390), (3969, 5170), (4158, 4935), (4230, 4851), (4410, 4653), (4455, 4606)]