31154120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 73483200

約数和(自身を除く): 42329080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 107, 116, 145, 214, 232, 251, 290, 428, 502, 535, 580, 856, 1004, 1070, 1160, 1255, 2008, 2140, 2510, 3103, 4280, 5020, 6206, 7279, 10040, 12412, 14558, 15515, 24824, 26857, 29116, 31030, 36395, 53714, 58232, 62060, 72790, 107428, 124120, 134285, 145580, 214856, 268570, 291160, 537140, 778853, 1074280, 1557706, 3115412, 3894265, 6230824, 7788530, 15577060, 31154120]

約数ペア:

[(1, 31154120), (2, 15577060), (4, 7788530), (5, 6230824), (8, 3894265), (10, 3115412), (20, 1557706), (29, 1074280), (40, 778853), (58, 537140), (107, 291160), (116, 268570), (145, 214856), (214, 145580), (232, 134285), (251, 124120), (290, 107428), (428, 72790), (502, 62060), (535, 58232), (580, 53714), (856, 36395), (1004, 31030), (1070, 29116), (1160, 26857), (1255, 24824), (2008, 15515), (2140, 14558), (2510, 12412), (3103, 10040), (4280, 7279), (5020, 6206)]