403480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 1140480

約数和(自身を除く): 737000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 131, 140, 154, 220, 262, 280, 308, 385, 440, 524, 616, 655, 770, 917, 1048, 1310, 1441, 1540, 1834, 2620, 2882, 3080, 3668, 4585, 5240, 5764, 7205, 7336, 9170, 10087, 11528, 14410, 18340, 20174, 28820, 36680, 40348, 50435, 57640, 80696, 100870, 201740, 403480]

約数ペア:

[(1, 403480), (2, 201740), (4, 100870), (5, 80696), (7, 57640), (8, 50435), (10, 40348), (11, 36680), (14, 28820), (20, 20174), (22, 18340), (28, 14410), (35, 11528), (40, 10087), (44, 9170), (55, 7336), (56, 7205), (70, 5764), (77, 5240), (88, 4585), (110, 3668), (131, 3080), (140, 2882), (154, 2620), (220, 1834), (262, 1540), (280, 1441), (308, 1310), (385, 1048), (440, 917), (524, 770), (616, 655)]