247800420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1019}}^1$

素因数の和:1234

約数の個数: 144

約数和(自身を含む): 864339840

約数和(自身を除く): 616539420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 193, 210, 252, 315, 386, 420, 579, 630, 772, 965, 1019, 1158, 1260, 1351, 1737, 1930, 2038, 2316, 2702, 2895, 3057, 3474, 3860, 4053, 4076, 5095, 5404, 5790, 6114, 6755, 6948, 7133, 8106, 8685, 9171, 10190, 11580, 12159, 12228, 13510, 14266, 15285, 16212, 17370, 18342, 20265, 20380, 21399, 24318, 27020, 28532, 30570, 34740, 35665, 36684, 40530, 42798, 45855, 48636, 60795, 61140, 64197, 71330, 81060, 85596, 91710, 106995, 121590, 128394, 142660, 183420, 196667, 213990, 243180, 256788, 320985, 393334, 427980, 590001, 641970, 786668, 983335, 1180002, 1283940, 1376669, 1770003, 1966670, 2360004, 2753338, 2950005, 3540006, 3933340, 4130007, 5506676, 5900010, 6883345, 7080012, 8260014, 8850015, 11800020, 12390021, 13766690, 16520028, 17700030, 20650035, 24780042, 27533380, 35400060, 41300070, 49560084, 61950105, 82600140, 123900210, 247800420]

約数ペア:

[(1, 247800420), (2, 123900210), (3, 82600140), (4, 61950105), (5, 49560084), (6, 41300070), (7, 35400060), (9, 27533380), (10, 24780042), (12, 20650035), (14, 17700030), (15, 16520028), (18, 13766690), (20, 12390021), (21, 11800020), (28, 8850015), (30, 8260014), (35, 7080012), (36, 6883345), (42, 5900010), (45, 5506676), (60, 4130007), (63, 3933340), (70, 3540006), (84, 2950005), (90, 2753338), (105, 2360004), (126, 1966670), (140, 1770003), (180, 1376669), (193, 1283940), (210, 1180002), (252, 983335), (315, 786668), (386, 641970), (420, 590001), (579, 427980), (630, 393334), (772, 320985), (965, 256788), (1019, 243180), (1158, 213990), (1260, 196667), (1351, 183420), (1737, 142660), (1930, 128394), (2038, 121590), (2316, 106995), (2702, 91710), (2895, 85596), (3057, 81060), (3474, 71330), (3860, 64197), (4053, 61140), (4076, 60795), (5095, 48636), (5404, 45855), (5790, 42798), (6114, 40530), (6755, 36684), (6948, 35665), (7133, 34740), (8106, 30570), (8685, 28532), (9171, 27020), (10190, 24318), (11580, 21399), (12159, 20380), (12228, 20265), (13510, 18342), (14266, 17370), (15285, 16212)]