81459040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39163}}^1$

素因数の和:39191

約数の個数: 48

約数和(自身を含む): 207255888

約数和(自身を除く): 125796848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 39163, 78326, 156652, 195815, 313304, 391630, 509119, 626608, 783260, 1018238, 1253216, 1566520, 2036476, 2545595, 3133040, 4072952, 5091190, 6266080, 8145904, 10182380, 16291808, 20364760, 40729520, 81459040]

約数ペア:

[(1, 81459040), (2, 40729520), (4, 20364760), (5, 16291808), (8, 10182380), (10, 8145904), (13, 6266080), (16, 5091190), (20, 4072952), (26, 3133040), (32, 2545595), (40, 2036476), (52, 1566520), (65, 1253216), (80, 1018238), (104, 783260), (130, 626608), (160, 509119), (208, 391630), (260, 313304), (416, 195815), (520, 156652), (1040, 78326), (2080, 39163)]