128875520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{25171}}^1$

素因数の和:25196

約数の個数: 44

約数和(自身を含む): 309162504

約数和(自身を除く): 180286984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 25171, 50342, 100684, 125855, 201368, 251710, 402736, 503420, 805472, 1006840, 1610944, 2013680, 3221888, 4027360, 6443776, 8054720, 12887552, 16109440, 25775104, 32218880, 64437760, 128875520]

約数ペア:

[(1, 128875520), (2, 64437760), (4, 32218880), (5, 25775104), (8, 16109440), (10, 12887552), (16, 8054720), (20, 6443776), (32, 4027360), (40, 3221888), (64, 2013680), (80, 1610944), (128, 1006840), (160, 805472), (256, 503420), (320, 402736), (512, 251710), (640, 201368), (1024, 125855), (1280, 100684), (2560, 50342), (5120, 25171)]