81218160

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1979}}^1$

素因数の和:2020

約数の個数: 160

約数和(自身を含む): 294624000

約数和(自身を除く): 213405840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 108, 114, 120, 135, 144, 152, 171, 180, 190, 216, 228, 240, 270, 285, 304, 342, 360, 380, 432, 456, 513, 540, 570, 684, 720, 760, 855, 912, 1026, 1080, 1140, 1368, 1520, 1710, 1979, 2052, 2160, 2280, 2565, 2736, 3420, 3958, 4104, 4560, 5130, 5937, 6840, 7916, 8208, 9895, 10260, 11874, 13680, 15832, 17811, 19790, 20520, 23748, 29685, 31664, 35622, 37601, 39580, 41040, 47496, 53433, 59370, 71244, 75202, 79160, 89055, 94992, 106866, 112803, 118740, 142488, 150404, 158320, 178110, 188005, 213732, 225606, 237480, 267165, 284976, 300808, 338409, 356220, 376010, 427464, 451212, 474960, 534330, 564015, 601616, 676818, 712440, 752020, 854928, 902424, 1015227, 1068660, 1128030, 1353636, 1424880, 1504040, 1692045, 1804848, 2030454, 2137320, 2256060, 2707272, 3008080, 3384090, 4060908, 4274640, 4512120, 5076135, 5414544, 6768180, 8121816, 9024240, 10152270, 13536360, 16243632, 20304540, 27072720, 40609080, 81218160]

約数ペア:

[(1, 81218160), (2, 40609080), (3, 27072720), (4, 20304540), (5, 16243632), (6, 13536360), (8, 10152270), (9, 9024240), (10, 8121816), (12, 6768180), (15, 5414544), (16, 5076135), (18, 4512120), (19, 4274640), (20, 4060908), (24, 3384090), (27, 3008080), (30, 2707272), (36, 2256060), (38, 2137320), (40, 2030454), (45, 1804848), (48, 1692045), (54, 1504040), (57, 1424880), (60, 1353636), (72, 1128030), (76, 1068660), (80, 1015227), (90, 902424), (95, 854928), (108, 752020), (114, 712440), (120, 676818), (135, 601616), (144, 564015), (152, 534330), (171, 474960), (180, 451212), (190, 427464), (216, 376010), (228, 356220), (240, 338409), (270, 300808), (285, 284976), (304, 267165), (342, 237480), (360, 225606), (380, 213732), (432, 188005), (456, 178110), (513, 158320), (540, 150404), (570, 142488), (684, 118740), (720, 112803), (760, 106866), (855, 94992), (912, 89055), (1026, 79160), (1080, 75202), (1140, 71244), (1368, 59370), (1520, 53433), (1710, 47496), (1979, 41040), (2052, 39580), (2160, 37601), (2280, 35622), (2565, 31664), (2736, 29685), (3420, 23748), (3958, 20520), (4104, 19790), (4560, 17811), (5130, 15832), (5937, 13680), (6840, 11874), (7916, 10260), (8208, 9895)]