2154789240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{4127}}^1$

素因数の和:4389

約数の個数: 128

約数和(自身を含む): 6835968000

約数和(自身を除く): 4681178760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 229, 285, 380, 456, 458, 570, 687, 760, 916, 1140, 1145, 1374, 1832, 2280, 2290, 2748, 3435, 4127, 4351, 4580, 5496, 6870, 8254, 8702, 9160, 12381, 13053, 13740, 16508, 17404, 20635, 21755, 24762, 26106, 27480, 33016, 34808, 41270, 43510, 49524, 52212, 61905, 65265, 78413, 82540, 87020, 99048, 104424, 123810, 130530, 156826, 165080, 174040, 235239, 247620, 261060, 313652, 392065, 470478, 495240, 522120, 627304, 784130, 940956, 945083, 1176195, 1568260, 1881912, 1890166, 2352390, 2835249, 3136520, 3780332, 4704780, 4725415, 5670498, 7560664, 9409560, 9450830, 11340996, 14176245, 17956577, 18901660, 22681992, 28352490, 35913154, 37803320, 53869731, 56704980, 71826308, 89782885, 107739462, 113409960, 143652616, 179565770, 215478924, 269348655, 359131540, 430957848, 538697310, 718263080, 1077394620, 2154789240]

約数ペア:

[(1, 2154789240), (2, 1077394620), (3, 718263080), (4, 538697310), (5, 430957848), (6, 359131540), (8, 269348655), (10, 215478924), (12, 179565770), (15, 143652616), (19, 113409960), (20, 107739462), (24, 89782885), (30, 71826308), (38, 56704980), (40, 53869731), (57, 37803320), (60, 35913154), (76, 28352490), (95, 22681992), (114, 18901660), (120, 17956577), (152, 14176245), (190, 11340996), (228, 9450830), (229, 9409560), (285, 7560664), (380, 5670498), (456, 4725415), (458, 4704780), (570, 3780332), (687, 3136520), (760, 2835249), (916, 2352390), (1140, 1890166), (1145, 1881912), (1374, 1568260), (1832, 1176195), (2280, 945083), (2290, 940956), (2748, 784130), (3435, 627304), (4127, 522120), (4351, 495240), (4580, 470478), (5496, 392065), (6870, 313652), (8254, 261060), (8702, 247620), (9160, 235239), (12381, 174040), (13053, 165080), (13740, 156826), (16508, 130530), (17404, 123810), (20635, 104424), (21755, 99048), (24762, 87020), (26106, 82540), (27480, 78413), (33016, 65265), (34808, 61905), (41270, 52212), (43510, 49524)]