21972137920

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^2\times {\mathrm{127}}^1$

素因数の和:399

約数の個数: 168

約数和(自身を含む): 54265324032

約数和(自身を除く): 32293186112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 101, 106, 127, 160, 202, 212, 254, 265, 320, 404, 424, 505, 508, 530, 635, 808, 848, 1010, 1016, 1060, 1270, 1616, 1696, 2020, 2032, 2120, 2540, 3232, 3392, 4040, 4064, 4240, 5080, 5353, 6464, 6731, 8080, 8128, 8480, 10160, 10201, 10706, 12827, 13462, 16160, 16960, 20320, 20402, 21412, 25654, 26765, 26924, 32320, 33655, 40640, 40804, 42824, 51005, 51308, 53530, 53848, 64135, 67310, 81608, 85648, 102010, 102616, 107060, 107696, 128270, 134620, 163216, 171296, 204020, 205232, 214120, 215392, 256540, 269240, 326432, 342592, 408040, 410464, 428240, 430784, 513080, 538480, 540653, 652864, 679831, 816080, 820928, 856480, 1026160, 1076960, 1081306, 1295527, 1359662, 1632160, 1712960, 2052320, 2153920, 2162612, 2591054, 2703265, 2719324, 3264320, 3399155, 4104640, 4325224, 5182108, 5406530, 5438648, 6477635, 6798310, 8650448, 10364216, 10813060, 10877296, 12955270, 13596620, 17300896, 20728432, 21626120, 21754592, 25910540, 27193240, 34601792, 41456864, 43252240, 43509184, 51821080, 54386480, 68662931, 82913728, 86504480, 103642160, 108772960, 137325862, 173008960, 207284320, 217545920, 274651724, 343314655, 414568640, 549303448, 686629310, 1098606896, 1373258620, 2197213792, 2746517240, 4394427584, 5493034480, 10986068960, 21972137920]

約数ペア:

[(1, 21972137920), (2, 10986068960), (4, 5493034480), (5, 4394427584), (8, 2746517240), (10, 2197213792), (16, 1373258620), (20, 1098606896), (32, 686629310), (40, 549303448), (53, 414568640), (64, 343314655), (80, 274651724), (101, 217545920), (106, 207284320), (127, 173008960), (160, 137325862), (202, 108772960), (212, 103642160), (254, 86504480), (265, 82913728), (320, 68662931), (404, 54386480), (424, 51821080), (505, 43509184), (508, 43252240), (530, 41456864), (635, 34601792), (808, 27193240), (848, 25910540), (1010, 21754592), (1016, 21626120), (1060, 20728432), (1270, 17300896), (1616, 13596620), (1696, 12955270), (2020, 10877296), (2032, 10813060), (2120, 10364216), (2540, 8650448), (3232, 6798310), (3392, 6477635), (4040, 5438648), (4064, 5406530), (4240, 5182108), (5080, 4325224), (5353, 4104640), (6464, 3399155), (6731, 3264320), (8080, 2719324), (8128, 2703265), (8480, 2591054), (10160, 2162612), (10201, 2153920), (10706, 2052320), (12827, 1712960), (13462, 1632160), (16160, 1359662), (16960, 1295527), (20320, 1081306), (20402, 1076960), (21412, 1026160), (25654, 856480), (26765, 820928), (26924, 816080), (32320, 679831), (33655, 652864), (40640, 540653), (40804, 538480), (42824, 513080), (51005, 430784), (51308, 428240), (53530, 410464), (53848, 408040), (64135, 342592), (67310, 326432), (81608, 269240), (85648, 256540), (102010, 215392), (102616, 214120), (107060, 205232), (107696, 204020), (128270, 171296), (134620, 163216)]