31258840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 74727360

約数和(自身を除く): 43468520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 557, 610, 920, 1114, 1220, 1403, 2228, 2440, 2785, 2806, 4456, 5570, 5612, 7015, 11140, 11224, 12811, 14030, 22280, 25622, 28060, 33977, 51244, 56120, 64055, 67954, 102488, 128110, 135908, 169885, 256220, 271816, 339770, 512440, 679540, 781471, 1359080, 1562942, 3125884, 3907355, 6251768, 7814710, 15629420, 31258840]

約数ペア:

[(1, 31258840), (2, 15629420), (4, 7814710), (5, 6251768), (8, 3907355), (10, 3125884), (20, 1562942), (23, 1359080), (40, 781471), (46, 679540), (61, 512440), (92, 339770), (115, 271816), (122, 256220), (184, 169885), (230, 135908), (244, 128110), (305, 102488), (460, 67954), (488, 64055), (557, 56120), (610, 51244), (920, 33977), (1114, 28060), (1220, 25622), (1403, 22280), (2228, 14030), (2440, 12811), (2785, 11224), (2806, 11140), (4456, 7015), (5570, 5612)]