81833520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{977}}^1$

素因数の和:1342

約数の個数: 80

約数和(自身を含む): 254671200

約数和(自身を除く): 172837680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 349, 698, 977, 1047, 1396, 1745, 1954, 2094, 2792, 2931, 3490, 3908, 4188, 4885, 5235, 5584, 5862, 6980, 7816, 8376, 9770, 10470, 11724, 13960, 14655, 15632, 16752, 19540, 20940, 23448, 27920, 29310, 39080, 41880, 46896, 58620, 78160, 83760, 117240, 234480, 340973, 681946, 1022919, 1363892, 1704865, 2045838, 2727784, 3409730, 4091676, 5114595, 5455568, 6819460, 8183352, 10229190, 13638920, 16366704, 20458380, 27277840, 40916760, 81833520]

約数ペア:

[(1, 81833520), (2, 40916760), (3, 27277840), (4, 20458380), (5, 16366704), (6, 13638920), (8, 10229190), (10, 8183352), (12, 6819460), (15, 5455568), (16, 5114595), (20, 4091676), (24, 3409730), (30, 2727784), (40, 2045838), (48, 1704865), (60, 1363892), (80, 1022919), (120, 681946), (240, 340973), (349, 234480), (698, 117240), (977, 83760), (1047, 78160), (1396, 58620), (1745, 46896), (1954, 41880), (2094, 39080), (2792, 29310), (2931, 27920), (3490, 23448), (3908, 20940), (4188, 19540), (4885, 16752), (5235, 15632), (5584, 14655), (5862, 13960), (6980, 11724), (7816, 10470), (8376, 9770)]