31279080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1663

約数の個数: 128

約数和(自身を含む): 111974400

約数和(自身を除く): 80695320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1619, 1932, 2415, 2760, 3220, 3238, 3864, 4830, 4857, 6440, 6476, 8095, 9660, 9714, 11333, 12952, 16190, 19320, 19428, 22666, 24285, 32380, 33999, 37237, 38856, 45332, 48570, 56665, 64760, 67998, 74474, 90664, 97140, 111711, 113330, 135996, 148948, 169995, 186185, 194280, 223422, 226660, 260659, 271992, 297896, 339990, 372370, 446844, 453320, 521318, 558555, 679980, 744740, 781977, 893688, 1042636, 1117110, 1303295, 1359960, 1489480, 1563954, 2085272, 2234220, 2606590, 3127908, 3909885, 4468440, 5213180, 6255816, 7819770, 10426360, 15639540, 31279080]

約数ペア:

[(1, 31279080), (2, 15639540), (3, 10426360), (4, 7819770), (5, 6255816), (6, 5213180), (7, 4468440), (8, 3909885), (10, 3127908), (12, 2606590), (14, 2234220), (15, 2085272), (20, 1563954), (21, 1489480), (23, 1359960), (24, 1303295), (28, 1117110), (30, 1042636), (35, 893688), (40, 781977), (42, 744740), (46, 679980), (56, 558555), (60, 521318), (69, 453320), (70, 446844), (84, 372370), (92, 339990), (105, 297896), (115, 271992), (120, 260659), (138, 226660), (140, 223422), (161, 194280), (168, 186185), (184, 169995), (210, 148948), (230, 135996), (276, 113330), (280, 111711), (322, 97140), (345, 90664), (420, 74474), (460, 67998), (483, 64760), (552, 56665), (644, 48570), (690, 45332), (805, 38856), (840, 37237), (920, 33999), (966, 32380), (1288, 24285), (1380, 22666), (1610, 19428), (1619, 19320), (1932, 16190), (2415, 12952), (2760, 11333), (3220, 9714), (3238, 9660), (3864, 8095), (4830, 6476), (4857, 6440)]