81765120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 264902400

約数和(自身を除く): 183137280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 107, 120, 128, 160, 192, 199, 214, 240, 256, 320, 321, 384, 398, 428, 480, 535, 597, 640, 642, 768, 796, 856, 960, 995, 1070, 1194, 1280, 1284, 1592, 1605, 1712, 1920, 1990, 2140, 2388, 2568, 2985, 3184, 3210, 3424, 3840, 3980, 4280, 4776, 5136, 5970, 6368, 6420, 6848, 7960, 8560, 9552, 10272, 11940, 12736, 12840, 13696, 15920, 17120, 19104, 20544, 21293, 23880, 25472, 25680, 27392, 31840, 34240, 38208, 41088, 42586, 47760, 50944, 51360, 63680, 63879, 68480, 76416, 82176, 85172, 95520, 102720, 106465, 127360, 127758, 136960, 152832, 170344, 191040, 205440, 212930, 254720, 255516, 319395, 340688, 382080, 410880, 425860, 511032, 638790, 681376, 764160, 851720, 1022064, 1277580, 1362752, 1703440, 2044128, 2555160, 2725504, 3406880, 4088256, 5110320, 5451008, 6813760, 8176512, 10220640, 13627520, 16353024, 20441280, 27255040, 40882560, 81765120]

約数ペア:

[(1, 81765120), (2, 40882560), (3, 27255040), (4, 20441280), (5, 16353024), (6, 13627520), (8, 10220640), (10, 8176512), (12, 6813760), (15, 5451008), (16, 5110320), (20, 4088256), (24, 3406880), (30, 2725504), (32, 2555160), (40, 2044128), (48, 1703440), (60, 1362752), (64, 1277580), (80, 1022064), (96, 851720), (107, 764160), (120, 681376), (128, 638790), (160, 511032), (192, 425860), (199, 410880), (214, 382080), (240, 340688), (256, 319395), (320, 255516), (321, 254720), (384, 212930), (398, 205440), (428, 191040), (480, 170344), (535, 152832), (597, 136960), (640, 127758), (642, 127360), (768, 106465), (796, 102720), (856, 95520), (960, 85172), (995, 82176), (1070, 76416), (1194, 68480), (1280, 63879), (1284, 63680), (1592, 51360), (1605, 50944), (1712, 47760), (1920, 42586), (1990, 41088), (2140, 38208), (2388, 34240), (2568, 31840), (2985, 27392), (3184, 25680), (3210, 25472), (3424, 23880), (3840, 21293), (3980, 20544), (4280, 19104), (4776, 17120), (5136, 15920), (5970, 13696), (6368, 12840), (6420, 12736), (6848, 11940), (7960, 10272), (8560, 9552)]