156951680

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1931}}^1$

素因数の和:2077

約数の個数: 64

約数和(自身を含む): 378362880

約数和(自身を除く): 221411200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 1931, 2032, 2540, 3862, 4064, 5080, 7724, 8128, 9655, 10160, 15448, 16256, 19310, 20320, 30896, 38620, 40640, 61792, 77240, 81280, 123584, 154480, 245237, 247168, 308960, 490474, 617920, 980948, 1226185, 1235840, 1961896, 2452370, 3923792, 4904740, 7847584, 9809480, 15695168, 19618960, 31390336, 39237920, 78475840, 156951680]

約数ペア:

[(1, 156951680), (2, 78475840), (4, 39237920), (5, 31390336), (8, 19618960), (10, 15695168), (16, 9809480), (20, 7847584), (32, 4904740), (40, 3923792), (64, 2452370), (80, 1961896), (127, 1235840), (128, 1226185), (160, 980948), (254, 617920), (320, 490474), (508, 308960), (635, 247168), (640, 245237), (1016, 154480), (1270, 123584), (1931, 81280), (2032, 77240), (2540, 61792), (3862, 40640), (4064, 38620), (5080, 30896), (7724, 20320), (8128, 19310), (9655, 16256), (10160, 15448)]