7171840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 18543168

約数和(自身を除く): 11371328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 431, 520, 640, 832, 862, 1040, 1280, 1664, 1724, 2080, 2155, 3328, 3448, 4160, 4310, 5603, 6896, 8320, 8620, 11206, 13792, 16640, 17240, 22412, 27584, 28015, 34480, 44824, 55168, 56030, 68960, 89648, 110336, 112060, 137920, 179296, 224120, 275840, 358592, 448240, 551680, 717184, 896480, 1434368, 1792960, 3585920, 7171840]

約数ペア:

[(1, 7171840), (2, 3585920), (4, 1792960), (5, 1434368), (8, 896480), (10, 717184), (13, 551680), (16, 448240), (20, 358592), (26, 275840), (32, 224120), (40, 179296), (52, 137920), (64, 112060), (65, 110336), (80, 89648), (104, 68960), (128, 56030), (130, 55168), (160, 44824), (208, 34480), (256, 28015), (260, 27584), (320, 22412), (416, 17240), (431, 16640), (520, 13792), (640, 11206), (832, 8620), (862, 8320), (1040, 6896), (1280, 5603), (1664, 4310), (1724, 4160), (2080, 3448), (2155, 3328)]