131531680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{883}}^1$

素因数の和:931

約数の個数: 144

約数和(自身を含む): 380933280

約数和(自身を除く): 249401600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 560, 608, 665, 760, 784, 883, 931, 980, 1064, 1120, 1330, 1520, 1568, 1766, 1862, 1960, 2128, 2660, 3040, 3532, 3724, 3920, 4256, 4415, 4655, 5320, 6181, 7064, 7448, 7840, 8830, 9310, 10640, 12362, 14128, 14896, 16777, 17660, 18620, 21280, 24724, 28256, 29792, 30905, 33554, 35320, 37240, 43267, 49448, 61810, 67108, 70640, 74480, 83885, 86534, 98896, 117439, 123620, 134216, 141280, 148960, 167770, 173068, 197792, 216335, 234878, 247240, 268432, 335540, 346136, 432670, 469756, 494480, 536864, 587195, 671080, 692272, 822073, 865340, 939512, 988960, 1174390, 1342160, 1384544, 1644146, 1730680, 1879024, 2348780, 2684320, 3288292, 3461360, 3758048, 4110365, 4697560, 6576584, 6922720, 8220730, 9395120, 13153168, 16441460, 18790240, 26306336, 32882920, 65765840, 131531680]

約数ペア:

[(1, 131531680), (2, 65765840), (4, 32882920), (5, 26306336), (7, 18790240), (8, 16441460), (10, 13153168), (14, 9395120), (16, 8220730), (19, 6922720), (20, 6576584), (28, 4697560), (32, 4110365), (35, 3758048), (38, 3461360), (40, 3288292), (49, 2684320), (56, 2348780), (70, 1879024), (76, 1730680), (80, 1644146), (95, 1384544), (98, 1342160), (112, 1174390), (133, 988960), (140, 939512), (152, 865340), (160, 822073), (190, 692272), (196, 671080), (224, 587195), (245, 536864), (266, 494480), (280, 469756), (304, 432670), (380, 346136), (392, 335540), (490, 268432), (532, 247240), (560, 234878), (608, 216335), (665, 197792), (760, 173068), (784, 167770), (883, 148960), (931, 141280), (980, 134216), (1064, 123620), (1120, 117439), (1330, 98896), (1520, 86534), (1568, 83885), (1766, 74480), (1862, 70640), (1960, 67108), (2128, 61810), (2660, 49448), (3040, 43267), (3532, 37240), (3724, 35320), (3920, 33554), (4256, 30905), (4415, 29792), (4655, 28256), (5320, 24724), (6181, 21280), (7064, 18620), (7448, 17660), (7840, 16777), (8830, 14896), (9310, 14128), (10640, 12362)]