18382780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4159}}^1$

素因数の和:4198

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25646660

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4159, 4420, 8318, 16636, 20795, 41590, 54067, 70703, 83180, 108134, 141406, 216268, 270335, 282812, 353515, 540670, 707030, 919139, 1081340, 1414060, 1838278, 3676556, 4595695, 9191390, 18382780]

約数ペア:

[(1, 18382780), (2, 9191390), (4, 4595695), (5, 3676556), (10, 1838278), (13, 1414060), (17, 1081340), (20, 919139), (26, 707030), (34, 540670), (52, 353515), (65, 282812), (68, 270335), (85, 216268), (130, 141406), (170, 108134), (221, 83180), (260, 70703), (340, 54067), (442, 41590), (884, 20795), (1105, 16636), (2210, 8318), (4159, 4420)]