1639290640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1576241}}^1$

素因数の和:1576267

約数の個数: 40

約数和(自身を含む): 4104534168

約数和(自身を除く): 2465243528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1576241, 3152482, 6304964, 7881205, 12609928, 15762410, 20491133, 25219856, 31524820, 40982266, 63049640, 81964532, 102455665, 126099280, 163929064, 204911330, 327858128, 409822660, 819645320, 1639290640]

約数ペア:

[(1, 1639290640), (2, 819645320), (4, 409822660), (5, 327858128), (8, 204911330), (10, 163929064), (13, 126099280), (16, 102455665), (20, 81964532), (26, 63049640), (40, 40982266), (52, 31524820), (65, 25219856), (80, 20491133), (104, 15762410), (130, 12609928), (208, 7881205), (260, 6304964), (520, 3152482), (1040, 1576241)]