20164040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2281}}^1$

素因数の和:2322

約数の個数: 64

約数和(自身を含む): 51755760

約数和(自身を除く): 31591720

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 2281, 4420, 4562, 8840, 9124, 11405, 18248, 22810, 29653, 38777, 45620, 59306, 77554, 91240, 118612, 148265, 155108, 193885, 237224, 296530, 310216, 387770, 504101, 593060, 775540, 1008202, 1186120, 1551080, 2016404, 2520505, 4032808, 5041010, 10082020, 20164040]

約数ペア:

[(1, 20164040), (2, 10082020), (4, 5041010), (5, 4032808), (8, 2520505), (10, 2016404), (13, 1551080), (17, 1186120), (20, 1008202), (26, 775540), (34, 593060), (40, 504101), (52, 387770), (65, 310216), (68, 296530), (85, 237224), (104, 193885), (130, 155108), (136, 148265), (170, 118612), (221, 91240), (260, 77554), (340, 59306), (442, 45620), (520, 38777), (680, 29653), (884, 22810), (1105, 18248), (1768, 11405), (2210, 9124), (2281, 8840), (4420, 4562)]