305098745

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 470373120

約数和(自身を除く): 165274375

約数列:

[1, 5, 7, 17, 31, 35, 49, 85, 119, 139, 155, 217, 245, 289, 527, 595, 695, 833, 973, 1085, 1445, 1519, 2023, 2363, 2635, 3689, 4165, 4309, 4865, 6811, 7595, 8959, 10115, 11815, 14161, 16541, 18445, 21545, 25823, 30163, 34055, 40171, 44795, 62713, 70805, 73253, 82705, 115787, 129115, 150815, 200855, 211141, 281197, 313565, 366265, 438991, 512771, 578935, 1055705, 1245301, 1405985, 1968379, 2194955, 2563855, 3589397, 6226505, 8717107, 9841895, 17946985, 43585535, 61019749, 305098745]

約数ペア:

[(1, 305098745), (5, 61019749), (7, 43585535), (17, 17946985), (31, 9841895), (35, 8717107), (49, 6226505), (85, 3589397), (119, 2563855), (139, 2194955), (155, 1968379), (217, 1405985), (245, 1245301), (289, 1055705), (527, 578935), (595, 512771), (695, 438991), (833, 366265), (973, 313565), (1085, 281197), (1445, 211141), (1519, 200855), (2023, 150815), (2363, 129115), (2635, 115787), (3689, 82705), (4165, 73253), (4309, 70805), (4865, 62713), (6811, 44795), (7595, 40171), (8959, 34055), (10115, 30163), (11815, 25823), (14161, 21545), (16541, 18445)]