18396040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2081}}^1$

素因数の和:2122

約数の個数: 64

約数和(自身を含む): 47219760

約数和(自身を除く): 28823720

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, 2081, 2210, 4162, 4420, 8324, 8840, 10405, 16648, 20810, 27053, 35377, 41620, 54106, 70754, 83240, 108212, 135265, 141508, 176885, 216424, 270530, 283016, 353770, 459901, 541060, 707540, 919802, 1082120, 1415080, 1839604, 2299505, 3679208, 4599010, 9198020, 18396040]

約数ペア:

[(1, 18396040), (2, 9198020), (4, 4599010), (5, 3679208), (8, 2299505), (10, 1839604), (13, 1415080), (17, 1082120), (20, 919802), (26, 707540), (34, 541060), (40, 459901), (52, 353770), (65, 283016), (68, 270530), (85, 216424), (104, 176885), (130, 141508), (136, 135265), (170, 108212), (221, 83240), (260, 70754), (340, 54106), (442, 41620), (520, 35377), (680, 27053), (884, 20810), (1105, 16648), (1768, 10405), (2081, 8840), (2210, 8324), (4162, 4420)]