201731872

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 405216000

約数和(自身を除く): 203484128

約数列:

[1, 2, 4, 8, 16, 32, 79, 158, 199, 316, 398, 401, 632, 796, 802, 1264, 1592, 1604, 2528, 3184, 3208, 6368, 6416, 12832, 15721, 31442, 31679, 62884, 63358, 79799, 125768, 126716, 159598, 251536, 253432, 319196, 503072, 506864, 638392, 1013728, 1276784, 2553568, 6304121, 12608242, 25216484, 50432968, 100865936, 201731872]

約数ペア:

[(1, 201731872), (2, 100865936), (4, 50432968), (8, 25216484), (16, 12608242), (32, 6304121), (79, 2553568), (158, 1276784), (199, 1013728), (316, 638392), (398, 506864), (401, 503072), (632, 319196), (796, 253432), (802, 251536), (1264, 159598), (1592, 126716), (1604, 125768), (2528, 79799), (3184, 63358), (3208, 62884), (6368, 31679), (6416, 31442), (12832, 15721)]