64580320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 183949920

約数和(自身を除く): 119369600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 109, 112, 115, 140, 160, 161, 184, 218, 224, 230, 280, 322, 368, 436, 460, 529, 545, 560, 644, 736, 763, 805, 872, 920, 1058, 1090, 1120, 1288, 1526, 1610, 1744, 1840, 2116, 2180, 2507, 2576, 2645, 3052, 3220, 3488, 3680, 3703, 3815, 4232, 4360, 5014, 5152, 5290, 6104, 6440, 7406, 7630, 8464, 8720, 10028, 10580, 12208, 12535, 12880, 14812, 15260, 16928, 17440, 17549, 18515, 20056, 21160, 24416, 25070, 25760, 29624, 30520, 35098, 37030, 40112, 42320, 50140, 57661, 59248, 61040, 70196, 74060, 80224, 84640, 87745, 100280, 115322, 118496, 122080, 140392, 148120, 175490, 200560, 230644, 280784, 288305, 296240, 350980, 401120, 403627, 461288, 561568, 576610, 592480, 701960, 807254, 922576, 1153220, 1403920, 1614508, 1845152, 2018135, 2306440, 2807840, 3229016, 4036270, 4612880, 6458032, 8072540, 9225760, 12916064, 16145080, 32290160, 64580320]

約数ペア:

[(1, 64580320), (2, 32290160), (4, 16145080), (5, 12916064), (7, 9225760), (8, 8072540), (10, 6458032), (14, 4612880), (16, 4036270), (20, 3229016), (23, 2807840), (28, 2306440), (32, 2018135), (35, 1845152), (40, 1614508), (46, 1403920), (56, 1153220), (70, 922576), (80, 807254), (92, 701960), (109, 592480), (112, 576610), (115, 561568), (140, 461288), (160, 403627), (161, 401120), (184, 350980), (218, 296240), (224, 288305), (230, 280784), (280, 230644), (322, 200560), (368, 175490), (436, 148120), (460, 140392), (529, 122080), (545, 118496), (560, 115322), (644, 100280), (736, 87745), (763, 84640), (805, 80224), (872, 74060), (920, 70196), (1058, 61040), (1090, 59248), (1120, 57661), (1288, 50140), (1526, 42320), (1610, 40112), (1744, 37030), (1840, 35098), (2116, 30520), (2180, 29624), (2507, 25760), (2576, 25070), (2645, 24416), (3052, 21160), (3220, 20056), (3488, 18515), (3680, 17549), (3703, 17440), (3815, 16928), (4232, 15260), (4360, 14812), (5014, 12880), (5152, 12535), (5290, 12208), (6104, 10580), (6440, 10028), (7406, 8720), (7630, 8464)]