651770140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 1689629760

約数和(自身を除く): 1037859620

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 89, 119, 140, 170, 178, 181, 238, 289, 340, 356, 362, 445, 476, 578, 595, 623, 724, 890, 905, 1156, 1190, 1246, 1267, 1445, 1513, 1780, 1810, 2023, 2380, 2492, 2534, 2890, 3026, 3077, 3115, 3620, 4046, 5068, 5780, 6052, 6154, 6230, 6335, 7565, 8092, 10115, 10591, 12308, 12460, 12670, 15130, 15385, 16109, 20230, 21182, 21539, 25340, 25721, 30260, 30770, 32218, 40460, 42364, 43078, 51442, 52309, 52955, 61540, 64436, 80545, 86156, 102884, 104618, 105910, 107695, 112763, 128605, 161090, 180047, 209236, 211820, 215390, 225526, 257210, 261545, 273853, 322180, 360094, 366163, 430780, 451052, 514420, 523090, 547706, 563815, 720188, 732326, 900235, 1046180, 1095412, 1127630, 1369265, 1464652, 1800470, 1830815, 1916971, 2255260, 2738530, 3600940, 3661630, 3833942, 4655501, 5477060, 7323260, 7667884, 9311002, 9584855, 18622004, 19169710, 23277505, 32588507, 38339420, 46555010, 65177014, 93110020, 130354028, 162942535, 325885070, 651770140]

約数ペア:

[(1, 651770140), (2, 325885070), (4, 162942535), (5, 130354028), (7, 93110020), (10, 65177014), (14, 46555010), (17, 38339420), (20, 32588507), (28, 23277505), (34, 19169710), (35, 18622004), (68, 9584855), (70, 9311002), (85, 7667884), (89, 7323260), (119, 5477060), (140, 4655501), (170, 3833942), (178, 3661630), (181, 3600940), (238, 2738530), (289, 2255260), (340, 1916971), (356, 1830815), (362, 1800470), (445, 1464652), (476, 1369265), (578, 1127630), (595, 1095412), (623, 1046180), (724, 900235), (890, 732326), (905, 720188), (1156, 563815), (1190, 547706), (1246, 523090), (1267, 514420), (1445, 451052), (1513, 430780), (1780, 366163), (1810, 360094), (2023, 322180), (2380, 273853), (2492, 261545), (2534, 257210), (2890, 225526), (3026, 215390), (3077, 211820), (3115, 209236), (3620, 180047), (4046, 161090), (5068, 128605), (5780, 112763), (6052, 107695), (6154, 105910), (6230, 104618), (6335, 102884), (7565, 86156), (8092, 80545), (10115, 64436), (10591, 61540), (12308, 52955), (12460, 52309), (12670, 51442), (15130, 43078), (15385, 42364), (16109, 40460), (20230, 32218), (21182, 30770), (21539, 30260), (25340, 25721)]