215508735

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 454809600

約数和(自身を除く): 239300865

約数列:

[1, 3, 5, 9, 13, 15, 19, 23, 27, 39, 45, 57, 65, 69, 95, 115, 117, 135, 171, 195, 207, 247, 281, 285, 299, 345, 351, 437, 513, 585, 621, 741, 843, 855, 897, 1035, 1235, 1311, 1405, 1495, 1755, 2185, 2223, 2529, 2565, 2691, 3105, 3653, 3705, 3933, 4215, 4485, 5339, 5681, 6463, 6555, 6669, 7587, 8073, 10959, 11115, 11799, 12645, 13455, 16017, 17043, 18265, 19389, 19665, 26695, 28405, 32315, 32877, 33345, 37935, 40365, 48051, 51129, 54795, 58167, 58995, 69407, 80085, 84019, 85215, 96945, 98631, 122797, 144153, 153387, 164385, 174501, 208221, 240255, 252057, 255645, 290835, 347035, 368391, 420095, 493155, 613985, 624663, 720765, 756171, 766935, 872505, 1041105, 1105173, 1260285, 1596361, 1841955, 1873989, 2268513, 3123315, 3315519, 3780855, 4789083, 5525865, 7981805, 9369945, 11342565, 14367249, 16577595, 23945415, 43101747, 71836245, 215508735]

約数ペア:

[(1, 215508735), (3, 71836245), (5, 43101747), (9, 23945415), (13, 16577595), (15, 14367249), (19, 11342565), (23, 9369945), (27, 7981805), (39, 5525865), (45, 4789083), (57, 3780855), (65, 3315519), (69, 3123315), (95, 2268513), (115, 1873989), (117, 1841955), (135, 1596361), (171, 1260285), (195, 1105173), (207, 1041105), (247, 872505), (281, 766935), (285, 756171), (299, 720765), (345, 624663), (351, 613985), (437, 493155), (513, 420095), (585, 368391), (621, 347035), (741, 290835), (843, 255645), (855, 252057), (897, 240255), (1035, 208221), (1235, 174501), (1311, 164385), (1405, 153387), (1495, 144153), (1755, 122797), (2185, 98631), (2223, 96945), (2529, 85215), (2565, 84019), (2691, 80085), (3105, 69407), (3653, 58995), (3705, 58167), (3933, 54795), (4215, 51129), (4485, 48051), (5339, 40365), (5681, 37935), (6463, 33345), (6555, 32877), (6669, 32315), (7587, 28405), (8073, 26695), (10959, 19665), (11115, 19389), (11799, 18265), (12645, 17043), (13455, 16017)]