165996860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 358018752

約数和(自身を除く): 192021892

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 206, 244, 305, 412, 515, 610, 1030, 1220, 1321, 2060, 2642, 5284, 6283, 6605, 12566, 13210, 25132, 26420, 31415, 62830, 80581, 125660, 136063, 161162, 272126, 322324, 402905, 544252, 680315, 805810, 1360630, 1611620, 2721260, 8299843, 16599686, 33199372, 41499215, 82998430, 165996860]

約数ペア:

[(1, 165996860), (2, 82998430), (4, 41499215), (5, 33199372), (10, 16599686), (20, 8299843), (61, 2721260), (103, 1611620), (122, 1360630), (206, 805810), (244, 680315), (305, 544252), (412, 402905), (515, 322324), (610, 272126), (1030, 161162), (1220, 136063), (1321, 125660), (2060, 80581), (2642, 62830), (5284, 31415), (6283, 26420), (6605, 25132), (12566, 13210)]