31898840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 75232800

約数和(自身を除く): 43333960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 107, 116, 145, 214, 232, 257, 290, 428, 514, 535, 580, 856, 1028, 1070, 1160, 1285, 2056, 2140, 2570, 3103, 4280, 5140, 6206, 7453, 10280, 12412, 14906, 15515, 24824, 27499, 29812, 31030, 37265, 54998, 59624, 62060, 74530, 109996, 124120, 137495, 149060, 219992, 274990, 298120, 549980, 797471, 1099960, 1594942, 3189884, 3987355, 6379768, 7974710, 15949420, 31898840]

約数ペア:

[(1, 31898840), (2, 15949420), (4, 7974710), (5, 6379768), (8, 3987355), (10, 3189884), (20, 1594942), (29, 1099960), (40, 797471), (58, 549980), (107, 298120), (116, 274990), (145, 219992), (214, 149060), (232, 137495), (257, 124120), (290, 109996), (428, 74530), (514, 62060), (535, 59624), (580, 54998), (856, 37265), (1028, 31030), (1070, 29812), (1160, 27499), (1285, 24824), (2056, 15515), (2140, 14906), (2570, 12412), (3103, 10280), (4280, 7453), (5140, 6206)]