31540660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 68245632

約数和(自身を除く): 36704972

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 206, 244, 251, 305, 412, 502, 515, 610, 1004, 1030, 1220, 1255, 2060, 2510, 5020, 6283, 12566, 15311, 25132, 25853, 30622, 31415, 51706, 61244, 62830, 76555, 103412, 125660, 129265, 153110, 258530, 306220, 517060, 1577033, 3154066, 6308132, 7885165, 15770330, 31540660]

約数ペア:

[(1, 31540660), (2, 15770330), (4, 7885165), (5, 6308132), (10, 3154066), (20, 1577033), (61, 517060), (103, 306220), (122, 258530), (206, 153110), (244, 129265), (251, 125660), (305, 103412), (412, 76555), (502, 62830), (515, 61244), (610, 51706), (1004, 31415), (1030, 30622), (1220, 25853), (1255, 25132), (2060, 15311), (2510, 12566), (5020, 6283)]