81319140

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 240

約数和(自身を含む): 298577664

約数和(自身を除く): 217258524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 71, 81, 84, 90, 101, 105, 108, 126, 135, 140, 142, 162, 180, 189, 202, 210, 213, 252, 270, 284, 303, 315, 324, 355, 378, 404, 405, 420, 426, 497, 505, 540, 567, 606, 630, 639, 707, 710, 756, 810, 852, 909, 945, 994, 1010, 1065, 1134, 1212, 1260, 1278, 1414, 1420, 1491, 1515, 1620, 1818, 1890, 1917, 1988, 2020, 2121, 2130, 2268, 2485, 2556, 2727, 2828, 2835, 2982, 3030, 3195, 3535, 3636, 3780, 3834, 4242, 4260, 4473, 4545, 4970, 5454, 5670, 5751, 5964, 6060, 6363, 6390, 7070, 7171, 7455, 7668, 8181, 8484, 8946, 9090, 9585, 9940, 10605, 10908, 11340, 11502, 12726, 12780, 13419, 13635, 14140, 14342, 14910, 16362, 17892, 18180, 19089, 19170, 21210, 21513, 22365, 23004, 25452, 26838, 27270, 28684, 28755, 29820, 31815, 32724, 35855, 38178, 38340, 40257, 40905, 42420, 43026, 44730, 50197, 53676, 54540, 57267, 57510, 63630, 64539, 67095, 71710, 76356, 80514, 81810, 86052, 89460, 95445, 100394, 107565, 114534, 115020, 127260, 129078, 134190, 143420, 150591, 161028, 163620, 190890, 193617, 200788, 201285, 215130, 229068, 250985, 258156, 268380, 286335, 301182, 322695, 381780, 387234, 402570, 430260, 451773, 501970, 572670, 580851, 602364, 645390, 752955, 774468, 805140, 903546, 968085, 1003940, 1145340, 1161702, 1290780, 1355319, 1505910, 1807092, 1936170, 2258865, 2323404, 2710638, 2904255, 3011820, 3872340, 4065957, 4517730, 5421276, 5808510, 6776595, 8131914, 9035460, 11617020, 13553190, 16263828, 20329785, 27106380, 40659570, 81319140]

約数ペア:

[(1, 81319140), (2, 40659570), (3, 27106380), (4, 20329785), (5, 16263828), (6, 13553190), (7, 11617020), (9, 9035460), (10, 8131914), (12, 6776595), (14, 5808510), (15, 5421276), (18, 4517730), (20, 4065957), (21, 3872340), (27, 3011820), (28, 2904255), (30, 2710638), (35, 2323404), (36, 2258865), (42, 1936170), (45, 1807092), (54, 1505910), (60, 1355319), (63, 1290780), (70, 1161702), (71, 1145340), (81, 1003940), (84, 968085), (90, 903546), (101, 805140), (105, 774468), (108, 752955), (126, 645390), (135, 602364), (140, 580851), (142, 572670), (162, 501970), (180, 451773), (189, 430260), (202, 402570), (210, 387234), (213, 381780), (252, 322695), (270, 301182), (284, 286335), (303, 268380), (315, 258156), (324, 250985), (355, 229068), (378, 215130), (404, 201285), (405, 200788), (420, 193617), (426, 190890), (497, 163620), (505, 161028), (540, 150591), (567, 143420), (606, 134190), (630, 129078), (639, 127260), (707, 115020), (710, 114534), (756, 107565), (810, 100394), (852, 95445), (909, 89460), (945, 86052), (994, 81810), (1010, 80514), (1065, 76356), (1134, 71710), (1212, 67095), (1260, 64539), (1278, 63630), (1414, 57510), (1420, 57267), (1491, 54540), (1515, 53676), (1620, 50197), (1818, 44730), (1890, 43026), (1917, 42420), (1988, 40905), (2020, 40257), (2121, 38340), (2130, 38178), (2268, 35855), (2485, 32724), (2556, 31815), (2727, 29820), (2828, 28755), (2835, 28684), (2982, 27270), (3030, 26838), (3195, 25452), (3535, 23004), (3636, 22365), (3780, 21513), (3834, 21210), (4242, 19170), (4260, 19089), (4473, 18180), (4545, 17892), (4970, 16362), (5454, 14910), (5670, 14342), (5751, 14140), (5964, 13635), (6060, 13419), (6363, 12780), (6390, 12726), (7070, 11502), (7171, 11340), (7455, 10908), (7668, 10605), (8181, 9940), (8484, 9585), (8946, 9090)]