438620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 1138368

約数和(自身を除く): 699748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 241, 260, 364, 455, 482, 910, 964, 1205, 1687, 1820, 2410, 3133, 3374, 4820, 6266, 6748, 8435, 12532, 15665, 16870, 21931, 31330, 33740, 43862, 62660, 87724, 109655, 219310, 438620]

約数ペア:

[(1, 438620), (2, 219310), (4, 109655), (5, 87724), (7, 62660), (10, 43862), (13, 33740), (14, 31330), (20, 21931), (26, 16870), (28, 15665), (35, 12532), (52, 8435), (65, 6748), (70, 6266), (91, 4820), (130, 3374), (140, 3133), (182, 2410), (241, 1820), (260, 1687), (364, 1205), (455, 964), (482, 910)]