985392280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{1567}}^1$

素因数の和:1856

約数の個数: 64

約数和(自身を含む): 2257920000

約数和(自身を除く): 1272527720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 199, 316, 395, 398, 632, 790, 796, 995, 1567, 1580, 1592, 1990, 3134, 3160, 3980, 6268, 7835, 7960, 12536, 15670, 15721, 31340, 31442, 62680, 62884, 78605, 123793, 125768, 157210, 247586, 311833, 314420, 495172, 618965, 623666, 628840, 990344, 1237930, 1247332, 1559165, 2475860, 2494664, 3118330, 4951720, 6236660, 12473320, 24634807, 49269614, 98539228, 123174035, 197078456, 246348070, 492696140, 985392280]

約数ペア:

[(1, 985392280), (2, 492696140), (4, 246348070), (5, 197078456), (8, 123174035), (10, 98539228), (20, 49269614), (40, 24634807), (79, 12473320), (158, 6236660), (199, 4951720), (316, 3118330), (395, 2494664), (398, 2475860), (632, 1559165), (790, 1247332), (796, 1237930), (995, 990344), (1567, 628840), (1580, 623666), (1592, 618965), (1990, 495172), (3134, 314420), (3160, 311833), (3980, 247586), (6268, 157210), (7835, 125768), (7960, 123793), (12536, 78605), (15670, 62884), (15721, 62680), (31340, 31442)]