289856980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 721163520

約数和(自身を除く): 431306540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 89, 140, 172, 178, 215, 301, 356, 430, 445, 541, 602, 623, 860, 890, 1082, 1204, 1246, 1505, 1780, 2164, 2492, 2705, 3010, 3115, 3787, 3827, 5410, 6020, 6230, 7574, 7654, 10820, 12460, 15148, 15308, 18935, 19135, 23263, 26789, 37870, 38270, 46526, 48149, 53578, 75740, 76540, 93052, 96298, 107156, 116315, 133945, 162841, 192596, 232630, 240745, 267890, 325682, 337043, 465260, 481490, 535780, 651364, 674086, 814205, 962980, 1348172, 1628410, 1685215, 2070407, 3256820, 3370430, 4140814, 6740860, 8281628, 10352035, 14492849, 20704070, 28985698, 41408140, 57971396, 72464245, 144928490, 289856980]

約数ペア:

[(1, 289856980), (2, 144928490), (4, 72464245), (5, 57971396), (7, 41408140), (10, 28985698), (14, 20704070), (20, 14492849), (28, 10352035), (35, 8281628), (43, 6740860), (70, 4140814), (86, 3370430), (89, 3256820), (140, 2070407), (172, 1685215), (178, 1628410), (215, 1348172), (301, 962980), (356, 814205), (430, 674086), (445, 651364), (541, 535780), (602, 481490), (623, 465260), (860, 337043), (890, 325682), (1082, 267890), (1204, 240745), (1246, 232630), (1505, 192596), (1780, 162841), (2164, 133945), (2492, 116315), (2705, 107156), (3010, 96298), (3115, 93052), (3787, 76540), (3827, 75740), (5410, 53578), (6020, 48149), (6230, 46526), (7574, 38270), (7654, 37870), (10820, 26789), (12460, 23263), (15148, 19135), (15308, 18935)]