259982240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{33161}}^1$

素因数の和:33190

約数の個数: 72

約数和(自身を含む): 714508452

約数和(自身を除く): 454526212

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 33161, 66322, 132644, 165805, 232127, 265288, 331610, 464254, 530576, 663220, 928508, 1061152, 1160635, 1326440, 1624889, 1857016, 2321270, 2652880, 3249778, 3714032, 4642540, 5305760, 6499556, 7428064, 8124445, 9285080, 12999112, 16248890, 18570160, 25998224, 32497780, 37140320, 51996448, 64995560, 129991120, 259982240]

約数ペア:

[(1, 259982240), (2, 129991120), (4, 64995560), (5, 51996448), (7, 37140320), (8, 32497780), (10, 25998224), (14, 18570160), (16, 16248890), (20, 12999112), (28, 9285080), (32, 8124445), (35, 7428064), (40, 6499556), (49, 5305760), (56, 4642540), (70, 3714032), (80, 3249778), (98, 2652880), (112, 2321270), (140, 1857016), (160, 1624889), (196, 1326440), (224, 1160635), (245, 1061152), (280, 928508), (392, 663220), (490, 530576), (560, 464254), (784, 331610), (980, 265288), (1120, 232127), (1568, 165805), (1960, 132644), (3920, 66322), (7840, 33161)]