9980320

素因数分解:

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

素因数の和:115

約数の個数: 144

約数和(自身を含む): 29302560

約数和(自身を除く): 19322240

約数列:

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

約数ペア:

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