129335720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2819}}^1$

素因数の和:2898

約数の個数: 64

約数和(自身を含む): 308620800

約数和(自身を除く): 179285080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 2294, 2819, 4588, 5638, 5735, 9176, 11276, 11470, 14095, 22552, 22940, 28190, 45880, 56380, 87389, 104303, 112760, 174778, 208606, 349556, 417212, 436945, 521515, 699112, 834424, 873890, 1043030, 1747780, 2086060, 3233393, 3495560, 4172120, 6466786, 12933572, 16166965, 25867144, 32333930, 64667860, 129335720]

約数ペア:

[(1, 129335720), (2, 64667860), (4, 32333930), (5, 25867144), (8, 16166965), (10, 12933572), (20, 6466786), (31, 4172120), (37, 3495560), (40, 3233393), (62, 2086060), (74, 1747780), (124, 1043030), (148, 873890), (155, 834424), (185, 699112), (248, 521515), (296, 436945), (310, 417212), (370, 349556), (620, 208606), (740, 174778), (1147, 112760), (1240, 104303), (1480, 87389), (2294, 56380), (2819, 45880), (4588, 28190), (5638, 22940), (5735, 22552), (9176, 14095), (11276, 11470)]