20199231325

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{44617}}^1$

素因数の和:44846

約数の個数: 48

約数和(自身を含む): 30982739200

約数和(自身を除く): 10783507875

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 199, 325, 455, 995, 1393, 2275, 2587, 4975, 6965, 12935, 18109, 34825, 44617, 64675, 90545, 223085, 312319, 452725, 580021, 1115425, 1561595, 2900105, 4060147, 7807975, 8878783, 14500525, 20300735, 44393915, 62151481, 101503675, 115424179, 221969575, 310757405, 577120895, 807969253, 1553787025, 2885604475, 4039846265, 20199231325]

約数ペア:

[(1, 20199231325), (5, 4039846265), (7, 2885604475), (13, 1553787025), (25, 807969253), (35, 577120895), (65, 310757405), (91, 221969575), (175, 115424179), (199, 101503675), (325, 62151481), (455, 44393915), (995, 20300735), (1393, 14500525), (2275, 8878783), (2587, 7807975), (4975, 4060147), (6965, 2900105), (12935, 1561595), (18109, 1115425), (34825, 580021), (44617, 452725), (64675, 312319), (90545, 223085)]