19238135

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 29548800

約数和(自身を除く): 10310665

約数列:

[1, 5, 7, 17, 31, 35, 49, 85, 119, 149, 155, 217, 245, 527, 595, 745, 833, 1043, 1085, 1519, 2533, 2635, 3689, 4165, 4619, 5215, 7301, 7595, 12665, 17731, 18445, 23095, 25823, 32333, 36505, 78523, 88655, 124117, 129115, 161665, 226331, 392615, 549661, 620585, 1131655, 2748305, 3847627, 19238135]

約数ペア:

[(1, 19238135), (5, 3847627), (7, 2748305), (17, 1131655), (31, 620585), (35, 549661), (49, 392615), (85, 226331), (119, 161665), (149, 129115), (155, 124117), (217, 88655), (245, 78523), (527, 36505), (595, 32333), (745, 25823), (833, 23095), (1043, 18445), (1085, 17731), (1519, 12665), (2533, 7595), (2635, 7301), (3689, 5215), (4165, 4619)]