1639448975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^2\times {\mathrm{487}}^1$

素因数の和:692

約数の個数: 36

約数和(自身を含む): 2181427344

約数和(自身を除く): 541978369

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 487, 1513, 2225, 2435, 7565, 7921, 8279, 12175, 37825, 39605, 41395, 43343, 134657, 198025, 206975, 216715, 673285, 736831, 1083575, 3366425, 3684155, 3857527, 18420775, 19287635, 65577959, 96438175, 327889795, 1639448975]

約数ペア:

[(1, 1639448975), (5, 327889795), (17, 96438175), (25, 65577959), (85, 19287635), (89, 18420775), (425, 3857527), (445, 3684155), (487, 3366425), (1513, 1083575), (2225, 736831), (2435, 673285), (7565, 216715), (7921, 206975), (8279, 198025), (12175, 134657), (37825, 43343), (39605, 41395)]