159806720

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6571}}^1$

素因数の和:6611

約数の個数: 72

約数和(自身を含む): 402995040

約数和(自身を除く): 243188320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 6571, 12160, 13142, 24320, 26284, 32855, 52568, 65710, 105136, 124849, 131420, 210272, 249698, 262840, 420544, 499396, 525680, 624245, 841088, 998792, 1051360, 1248490, 1682176, 1997584, 2102720, 2496980, 3995168, 4205440, 4993960, 7990336, 8410880, 9987920, 15980672, 19975840, 31961344, 39951680, 79903360, 159806720]

約数ペア:

[(1, 159806720), (2, 79903360), (4, 39951680), (5, 31961344), (8, 19975840), (10, 15980672), (16, 9987920), (19, 8410880), (20, 7990336), (32, 4993960), (38, 4205440), (40, 3995168), (64, 2496980), (76, 2102720), (80, 1997584), (95, 1682176), (128, 1248490), (152, 1051360), (160, 998792), (190, 841088), (256, 624245), (304, 525680), (320, 499396), (380, 420544), (608, 262840), (640, 249698), (760, 210272), (1216, 131420), (1280, 124849), (1520, 105136), (2432, 65710), (3040, 52568), (4864, 32855), (6080, 26284), (6571, 24320), (12160, 13142)]