202913080

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 466416000

約数和(自身を除く): 263502920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 157, 158, 314, 316, 395, 409, 628, 632, 785, 790, 818, 1256, 1570, 1580, 1636, 2045, 3140, 3160, 3272, 4090, 6280, 8180, 12403, 16360, 24806, 32311, 49612, 62015, 64213, 64622, 99224, 124030, 128426, 129244, 161555, 248060, 256852, 258488, 321065, 323110, 496120, 513704, 642130, 646220, 1284260, 1292440, 2568520, 5072827, 10145654, 20291308, 25364135, 40582616, 50728270, 101456540, 202913080]

約数ペア:

[(1, 202913080), (2, 101456540), (4, 50728270), (5, 40582616), (8, 25364135), (10, 20291308), (20, 10145654), (40, 5072827), (79, 2568520), (157, 1292440), (158, 1284260), (314, 646220), (316, 642130), (395, 513704), (409, 496120), (628, 323110), (632, 321065), (785, 258488), (790, 256852), (818, 248060), (1256, 161555), (1570, 129244), (1580, 128426), (1636, 124030), (2045, 99224), (3140, 64622), (3160, 64213), (3272, 62015), (4090, 49612), (6280, 32311), (8180, 24806), (12403, 16360)]