128879800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13151}}^1$

素因数の和:13181

約数の個数: 72

約数和(自身を含む): 348593760

約数和(自身を除く): 219713960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800, 13151, 26302, 52604, 65755, 92057, 105208, 131510, 184114, 263020, 328775, 368228, 460285, 526040, 644399, 657550, 736456, 920570, 1288798, 1315100, 1841140, 2301425, 2577596, 2630200, 3221995, 3682280, 4602850, 5155192, 6443990, 9205700, 12887980, 16109975, 18411400, 25775960, 32219950, 64439900, 128879800]

約数ペア:

[(1, 128879800), (2, 64439900), (4, 32219950), (5, 25775960), (7, 18411400), (8, 16109975), (10, 12887980), (14, 9205700), (20, 6443990), (25, 5155192), (28, 4602850), (35, 3682280), (40, 3221995), (49, 2630200), (50, 2577596), (56, 2301425), (70, 1841140), (98, 1315100), (100, 1288798), (140, 920570), (175, 736456), (196, 657550), (200, 644399), (245, 526040), (280, 460285), (350, 368228), (392, 328775), (490, 263020), (700, 184114), (980, 131510), (1225, 105208), (1400, 92057), (1960, 65755), (2450, 52604), (4900, 26302), (9800, 13151)]