25206580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 108

約数和(自身を含む): 66146220

約数和(自身を除く): 40939640

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 89, 98, 119, 140, 170, 178, 196, 238, 245, 289, 340, 356, 445, 476, 490, 578, 595, 623, 833, 890, 980, 1156, 1190, 1246, 1445, 1513, 1666, 1780, 2023, 2380, 2492, 2890, 3026, 3115, 3332, 4046, 4165, 4361, 5780, 6052, 6230, 7565, 8092, 8330, 8722, 10115, 10591, 12460, 14161, 15130, 16660, 17444, 20230, 21182, 21805, 25721, 28322, 30260, 40460, 42364, 43610, 51442, 52955, 56644, 70805, 74137, 87220, 102884, 105910, 128605, 141610, 148274, 180047, 211820, 257210, 283220, 296548, 360094, 370685, 514420, 720188, 741370, 900235, 1260329, 1482740, 1800470, 2520658, 3600940, 5041316, 6301645, 12603290, 25206580]

約数ペア:

[(1, 25206580), (2, 12603290), (4, 6301645), (5, 5041316), (7, 3600940), (10, 2520658), (14, 1800470), (17, 1482740), (20, 1260329), (28, 900235), (34, 741370), (35, 720188), (49, 514420), (68, 370685), (70, 360094), (85, 296548), (89, 283220), (98, 257210), (119, 211820), (140, 180047), (170, 148274), (178, 141610), (196, 128605), (238, 105910), (245, 102884), (289, 87220), (340, 74137), (356, 70805), (445, 56644), (476, 52955), (490, 51442), (578, 43610), (595, 42364), (623, 40460), (833, 30260), (890, 28322), (980, 25721), (1156, 21805), (1190, 21182), (1246, 20230), (1445, 17444), (1513, 16660), (1666, 15130), (1780, 14161), (2023, 12460), (2380, 10591), (2492, 10115), (2890, 8722), (3026, 8330), (3115, 8092), (3332, 7565), (4046, 6230), (4165, 6052), (4361, 5780)]