640372608

素因数分解:

$2^7\times 3^3\times {\mathrm{127}}^1\times {\mathrm{1459}}^1$

素因数の和:1609

約数の個数: 128

約数和(自身を含む): 1906176000

約数和(自身を除く): 1265803392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 127, 128, 144, 192, 216, 254, 288, 381, 384, 432, 508, 576, 762, 864, 1016, 1143, 1152, 1459, 1524, 1728, 2032, 2286, 2918, 3048, 3429, 3456, 4064, 4377, 4572, 5836, 6096, 6858, 8128, 8754, 9144, 11672, 12192, 13131, 13716, 16256, 17508, 18288, 23344, 24384, 26262, 27432, 35016, 36576, 39393, 46688, 48768, 52524, 54864, 70032, 73152, 78786, 93376, 105048, 109728, 140064, 146304, 157572, 185293, 186752, 210096, 219456, 280128, 315144, 370586, 420192, 438912, 555879, 560256, 630288, 741172, 840384, 1111758, 1260576, 1482344, 1667637, 1680768, 2223516, 2521152, 2964688, 3335274, 4447032, 5002911, 5042304, 5929376, 6670548, 8894064, 10005822, 11858752, 13341096, 17788128, 20011644, 23717504, 26682192, 35576256, 40023288, 53364384, 71152512, 80046576, 106728768, 160093152, 213457536, 320186304, 640372608]

約数ペア:

[(1, 640372608), (2, 320186304), (3, 213457536), (4, 160093152), (6, 106728768), (8, 80046576), (9, 71152512), (12, 53364384), (16, 40023288), (18, 35576256), (24, 26682192), (27, 23717504), (32, 20011644), (36, 17788128), (48, 13341096), (54, 11858752), (64, 10005822), (72, 8894064), (96, 6670548), (108, 5929376), (127, 5042304), (128, 5002911), (144, 4447032), (192, 3335274), (216, 2964688), (254, 2521152), (288, 2223516), (381, 1680768), (384, 1667637), (432, 1482344), (508, 1260576), (576, 1111758), (762, 840384), (864, 741172), (1016, 630288), (1143, 560256), (1152, 555879), (1459, 438912), (1524, 420192), (1728, 370586), (2032, 315144), (2286, 280128), (2918, 219456), (3048, 210096), (3429, 186752), (3456, 185293), (4064, 157572), (4377, 146304), (4572, 140064), (5836, 109728), (6096, 105048), (6858, 93376), (8128, 78786), (8754, 73152), (9144, 70032), (11672, 54864), (12192, 52524), (13131, 48768), (13716, 46688), (16256, 39393), (17508, 36576), (18288, 35016), (23344, 27432), (24384, 26262)]