128671000

素因数分解:

$2^3\times 5^3\times {\mathrm{223}}^1\times {\mathrm{577}}^1$

素因数の和:821

約数の個数: 64

約数和(自身を含む): 302964480

約数和(自身を除く): 174293480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 223, 250, 446, 500, 577, 892, 1000, 1115, 1154, 1784, 2230, 2308, 2885, 4460, 4616, 5575, 5770, 8920, 11150, 11540, 14425, 22300, 23080, 27875, 28850, 44600, 55750, 57700, 72125, 111500, 115400, 128671, 144250, 223000, 257342, 288500, 514684, 577000, 643355, 1029368, 1286710, 2573420, 3216775, 5146840, 6433550, 12867100, 16083875, 25734200, 32167750, 64335500, 128671000]

約数ペア:

[(1, 128671000), (2, 64335500), (4, 32167750), (5, 25734200), (8, 16083875), (10, 12867100), (20, 6433550), (25, 5146840), (40, 3216775), (50, 2573420), (100, 1286710), (125, 1029368), (200, 643355), (223, 577000), (250, 514684), (446, 288500), (500, 257342), (577, 223000), (892, 144250), (1000, 128671), (1115, 115400), (1154, 111500), (1784, 72125), (2230, 57700), (2308, 55750), (2885, 44600), (4460, 28850), (4616, 27875), (5575, 23080), (5770, 22300), (8920, 14425), (11150, 11540)]