19652620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 44862048

約数和(自身を除く): 25209428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 577, 655, 1154, 1310, 1703, 2308, 2620, 2885, 3406, 5770, 6812, 7501, 8515, 11540, 15002, 17030, 30004, 34060, 37505, 75010, 75587, 150020, 151174, 302348, 377935, 755870, 982631, 1511740, 1965262, 3930524, 4913155, 9826310, 19652620]

約数ペア:

[(1, 19652620), (2, 9826310), (4, 4913155), (5, 3930524), (10, 1965262), (13, 1511740), (20, 982631), (26, 755870), (52, 377935), (65, 302348), (130, 151174), (131, 150020), (260, 75587), (262, 75010), (524, 37505), (577, 34060), (655, 30004), (1154, 17030), (1310, 15002), (1703, 11540), (2308, 8515), (2620, 7501), (2885, 6812), (3406, 5770)]