80387280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{359}}^1$

素因数の和:689

約数の個数: 120

約数和(自身を含む): 271589760

約数和(自身を除く): 191202480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 311, 359, 360, 622, 718, 720, 933, 1077, 1244, 1436, 1555, 1795, 1866, 2154, 2488, 2799, 2872, 3110, 3231, 3590, 3732, 4308, 4665, 4976, 5385, 5598, 5744, 6220, 6462, 7180, 7464, 8616, 9330, 10770, 11196, 12440, 12924, 13995, 14360, 14928, 16155, 17232, 18660, 21540, 22392, 24880, 25848, 27990, 28720, 32310, 37320, 43080, 44784, 51696, 55980, 64620, 74640, 86160, 111649, 111960, 129240, 223298, 223920, 258480, 334947, 446596, 558245, 669894, 893192, 1004841, 1116490, 1339788, 1674735, 1786384, 2009682, 2232980, 2679576, 3349470, 4019364, 4465960, 5024205, 5359152, 6698940, 8038728, 8931920, 10048410, 13397880, 16077456, 20096820, 26795760, 40193640, 80387280]

約数ペア:

[(1, 80387280), (2, 40193640), (3, 26795760), (4, 20096820), (5, 16077456), (6, 13397880), (8, 10048410), (9, 8931920), (10, 8038728), (12, 6698940), (15, 5359152), (16, 5024205), (18, 4465960), (20, 4019364), (24, 3349470), (30, 2679576), (36, 2232980), (40, 2009682), (45, 1786384), (48, 1674735), (60, 1339788), (72, 1116490), (80, 1004841), (90, 893192), (120, 669894), (144, 558245), (180, 446596), (240, 334947), (311, 258480), (359, 223920), (360, 223298), (622, 129240), (718, 111960), (720, 111649), (933, 86160), (1077, 74640), (1244, 64620), (1436, 55980), (1555, 51696), (1795, 44784), (1866, 43080), (2154, 37320), (2488, 32310), (2799, 28720), (2872, 27990), (3110, 25848), (3231, 24880), (3590, 22392), (3732, 21540), (4308, 18660), (4665, 17232), (4976, 16155), (5385, 14928), (5598, 14360), (5744, 13995), (6220, 12924), (6462, 12440), (7180, 11196), (7464, 10770), (8616, 9330)]