31401890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1093}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 64865448

約数和(自身を除く): 33463558

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 845, 1093, 1105, 1690, 2186, 2210, 2873, 5465, 5746, 10930, 14209, 14365, 18581, 28418, 28730, 37162, 71045, 92905, 142090, 184717, 185810, 241553, 369434, 483106, 923585, 1207765, 1847170, 2415530, 3140189, 6280378, 15700945, 31401890]

約数ペア:

[(1, 31401890), (2, 15700945), (5, 6280378), (10, 3140189), (13, 2415530), (17, 1847170), (26, 1207765), (34, 923585), (65, 483106), (85, 369434), (130, 241553), (169, 185810), (170, 184717), (221, 142090), (338, 92905), (442, 71045), (845, 37162), (1093, 28730), (1105, 28418), (1690, 18581), (2186, 14365), (2210, 14209), (2873, 10930), (5465, 5746)]