31881440

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6871}}^1$

素因数の和:6915

約数の個数: 48

約数和(自身を含む): 77928480

約数和(自身を除く): 46047040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4640, 6871, 13742, 27484, 34355, 54968, 68710, 109936, 137420, 199259, 219872, 274840, 398518, 549680, 797036, 996295, 1099360, 1594072, 1992590, 3188144, 3985180, 6376288, 7970360, 15940720, 31881440]

約数ペア:

[(1, 31881440), (2, 15940720), (4, 7970360), (5, 6376288), (8, 3985180), (10, 3188144), (16, 1992590), (20, 1594072), (29, 1099360), (32, 996295), (40, 797036), (58, 549680), (80, 398518), (116, 274840), (145, 219872), (160, 199259), (232, 137420), (290, 109936), (464, 68710), (580, 54968), (928, 34355), (1160, 27484), (2320, 13742), (4640, 6871)]