19960640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 168

約数和(自身を含む): 59070240

約数和(自身を除く): 39109600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 67, 70, 76, 80, 95, 98, 112, 133, 134, 140, 152, 160, 190, 196, 224, 245, 266, 268, 280, 304, 320, 335, 380, 392, 448, 469, 490, 532, 536, 560, 608, 665, 670, 760, 784, 931, 938, 980, 1064, 1072, 1120, 1216, 1273, 1330, 1340, 1520, 1568, 1862, 1876, 1960, 2128, 2144, 2240, 2345, 2546, 2660, 2680, 3040, 3136, 3283, 3724, 3752, 3920, 4256, 4288, 4655, 4690, 5092, 5320, 5360, 6080, 6365, 6566, 7448, 7504, 7840, 8512, 8911, 9310, 9380, 10184, 10640, 10720, 12730, 13132, 14896, 15008, 15680, 16415, 17822, 18620, 18760, 20368, 21280, 21440, 25460, 26264, 29792, 30016, 32830, 35644, 37240, 37520, 40736, 42560, 44555, 50920, 52528, 59584, 62377, 65660, 71288, 74480, 75040, 81472, 89110, 101840, 105056, 124754, 131320, 142576, 148960, 150080, 178220, 203680, 210112, 249508, 262640, 285152, 297920, 311885, 356440, 407360, 499016, 525280, 570304, 623770, 712880, 998032, 1050560, 1247540, 1425760, 1996064, 2495080, 2851520, 3992128, 4990160, 9980320, 19960640]

約数ペア:

[(1, 19960640), (2, 9980320), (4, 4990160), (5, 3992128), (7, 2851520), (8, 2495080), (10, 1996064), (14, 1425760), (16, 1247540), (19, 1050560), (20, 998032), (28, 712880), (32, 623770), (35, 570304), (38, 525280), (40, 499016), (49, 407360), (56, 356440), (64, 311885), (67, 297920), (70, 285152), (76, 262640), (80, 249508), (95, 210112), (98, 203680), (112, 178220), (133, 150080), (134, 148960), (140, 142576), (152, 131320), (160, 124754), (190, 105056), (196, 101840), (224, 89110), (245, 81472), (266, 75040), (268, 74480), (280, 71288), (304, 65660), (320, 62377), (335, 59584), (380, 52528), (392, 50920), (448, 44555), (469, 42560), (490, 40736), (532, 37520), (536, 37240), (560, 35644), (608, 32830), (665, 30016), (670, 29792), (760, 26264), (784, 25460), (931, 21440), (938, 21280), (980, 20368), (1064, 18760), (1072, 18620), (1120, 17822), (1216, 16415), (1273, 15680), (1330, 15008), (1340, 14896), (1520, 13132), (1568, 12730), (1862, 10720), (1876, 10640), (1960, 10184), (2128, 9380), (2144, 9310), (2240, 8911), (2345, 8512), (2546, 7840), (2660, 7504), (2680, 7448), (3040, 6566), (3136, 6365), (3283, 6080), (3724, 5360), (3752, 5320), (3920, 5092), (4256, 4690), (4288, 4655)]