19917244220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{290593}}^1$

素因数の和:290774

約数の個数: 48

約数和(自身を含む): 43937812800

約数和(自身を除く): 24020568580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 298, 460, 596, 745, 1490, 2980, 3427, 6854, 13708, 17135, 34270, 68540, 290593, 581186, 1162372, 1452965, 2905930, 5811860, 6683639, 13367278, 26734556, 33418195, 43298357, 66836390, 86596714, 133672780, 173193428, 216491785, 432983570, 865967140, 995862211, 1991724422, 3983448844, 4979311055, 9958622110, 19917244220]

約数ペア:

[(1, 19917244220), (2, 9958622110), (4, 4979311055), (5, 3983448844), (10, 1991724422), (20, 995862211), (23, 865967140), (46, 432983570), (92, 216491785), (115, 173193428), (149, 133672780), (230, 86596714), (298, 66836390), (460, 43298357), (596, 33418195), (745, 26734556), (1490, 13367278), (2980, 6683639), (3427, 5811860), (6854, 2905930), (13708, 1452965), (17135, 1162372), (34270, 581186), (68540, 290593)]