17720690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{503}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 16825486

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 503, 542, 1006, 1355, 2515, 2710, 3523, 5030, 6539, 7046, 13078, 17615, 32695, 35230, 65390, 136313, 272626, 681565, 1363130, 1772069, 3544138, 8860345, 17720690]

約数ペア:

[(1, 17720690), (2, 8860345), (5, 3544138), (10, 1772069), (13, 1363130), (26, 681565), (65, 272626), (130, 136313), (271, 65390), (503, 35230), (542, 32695), (1006, 17615), (1355, 13078), (2515, 7046), (2710, 6539), (3523, 5030)]