81755280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{419}}^1$

素因数の和:709

約数の個数: 120

約数和(自身を含む): 276232320

約数和(自身を除く): 194477040

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, 271, 360, 419, 542, 720, 813, 838, 1084, 1257, 1355, 1626, 1676, 2095, 2168, 2439, 2514, 2710, 3252, 3352, 3771, 4065, 4190, 4336, 4878, 5028, 5420, 6285, 6504, 6704, 7542, 8130, 8380, 9756, 10056, 10840, 12195, 12570, 13008, 15084, 16260, 16760, 18855, 19512, 20112, 21680, 24390, 25140, 30168, 32520, 33520, 37710, 39024, 48780, 50280, 60336, 65040, 75420, 97560, 100560, 113549, 150840, 195120, 227098, 301680, 340647, 454196, 567745, 681294, 908392, 1021941, 1135490, 1362588, 1703235, 1816784, 2043882, 2270980, 2725176, 3406470, 4087764, 4541960, 5109705, 5450352, 6812940, 8175528, 9083920, 10219410, 13625880, 16351056, 20438820, 27251760, 40877640, 81755280]

約数ペア:

[(1, 81755280), (2, 40877640), (3, 27251760), (4, 20438820), (5, 16351056), (6, 13625880), (8, 10219410), (9, 9083920), (10, 8175528), (12, 6812940), (15, 5450352), (16, 5109705), (18, 4541960), (20, 4087764), (24, 3406470), (30, 2725176), (36, 2270980), (40, 2043882), (45, 1816784), (48, 1703235), (60, 1362588), (72, 1135490), (80, 1021941), (90, 908392), (120, 681294), (144, 567745), (180, 454196), (240, 340647), (271, 301680), (360, 227098), (419, 195120), (542, 150840), (720, 113549), (813, 100560), (838, 97560), (1084, 75420), (1257, 65040), (1355, 60336), (1626, 50280), (1676, 48780), (2095, 39024), (2168, 37710), (2439, 33520), (2514, 32520), (2710, 30168), (3252, 25140), (3352, 24390), (3771, 21680), (4065, 20112), (4190, 19512), (4336, 18855), (4878, 16760), (5028, 16260), (5420, 15084), (6285, 13008), (6504, 12570), (6704, 12195), (7542, 10840), (8130, 10056), (8380, 9756)]