131678080

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6637}}^1$

素因数の和:6687

約数の個数: 64

約数和(自身を含む): 324996480

約数和(自身を除く): 193318400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6637, 9920, 13274, 19840, 26548, 33185, 53096, 66370, 106192, 132740, 205747, 212384, 265480, 411494, 424768, 530960, 822988, 849536, 1028735, 1061920, 1645976, 2057470, 2123840, 3291952, 4114940, 4247680, 6583904, 8229880, 13167808, 16459760, 26335616, 32919520, 65839040, 131678080]

約数ペア:

[(1, 131678080), (2, 65839040), (4, 32919520), (5, 26335616), (8, 16459760), (10, 13167808), (16, 8229880), (20, 6583904), (31, 4247680), (32, 4114940), (40, 3291952), (62, 2123840), (64, 2057470), (80, 1645976), (124, 1061920), (128, 1028735), (155, 849536), (160, 822988), (248, 530960), (310, 424768), (320, 411494), (496, 265480), (620, 212384), (640, 205747), (992, 132740), (1240, 106192), (1984, 66370), (2480, 53096), (3968, 33185), (4960, 26548), (6637, 19840), (9920, 13274)]