281557920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11971}}^1$

素因数の和:12003

約数の個数: 144

約数和(自身を含む): 1031794848

約数和(自身を除く): 750236928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 11971, 23520, 23942, 35913, 47884, 59855, 71826, 83797, 95768, 119710, 143652, 167594, 179565, 191536, 239420, 251391, 287304, 335188, 359130, 383072, 418985, 478840, 502782, 574608, 586579, 670376, 718260, 837970, 957680, 1005564, 1149216, 1173158, 1256955, 1340752, 1436520, 1675940, 1759737, 1915360, 2011128, 2346316, 2513910, 2681504, 2873040, 2932895, 3351880, 3519474, 4022256, 4692632, 5027820, 5746080, 5865790, 6703760, 7038948, 8044512, 8798685, 9385264, 10055640, 11731580, 13407520, 14077896, 17597370, 18770528, 20111280, 23463160, 28155792, 35194740, 40222560, 46926320, 56311584, 70389480, 93852640, 140778960, 281557920]

約数ペア:

[(1, 281557920), (2, 140778960), (3, 93852640), (4, 70389480), (5, 56311584), (6, 46926320), (7, 40222560), (8, 35194740), (10, 28155792), (12, 23463160), (14, 20111280), (15, 18770528), (16, 17597370), (20, 14077896), (21, 13407520), (24, 11731580), (28, 10055640), (30, 9385264), (32, 8798685), (35, 8044512), (40, 7038948), (42, 6703760), (48, 5865790), (49, 5746080), (56, 5027820), (60, 4692632), (70, 4022256), (80, 3519474), (84, 3351880), (96, 2932895), (98, 2873040), (105, 2681504), (112, 2513910), (120, 2346316), (140, 2011128), (147, 1915360), (160, 1759737), (168, 1675940), (196, 1436520), (210, 1340752), (224, 1256955), (240, 1173158), (245, 1149216), (280, 1005564), (294, 957680), (336, 837970), (392, 718260), (420, 670376), (480, 586579), (490, 574608), (560, 502782), (588, 478840), (672, 418985), (735, 383072), (784, 359130), (840, 335188), (980, 287304), (1120, 251391), (1176, 239420), (1470, 191536), (1568, 179565), (1680, 167594), (1960, 143652), (2352, 119710), (2940, 95768), (3360, 83797), (3920, 71826), (4704, 59855), (5880, 47884), (7840, 35913), (11760, 23942), (11971, 23520)]