156494240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19961}}^1$

素因数の和:19990

約数の個数: 72

約数和(自身を含む): 430101252

約数和(自身を除く): 273607012

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 19961, 39922, 79844, 99805, 139727, 159688, 199610, 279454, 319376, 399220, 558908, 638752, 698635, 798440, 978089, 1117816, 1397270, 1596880, 1956178, 2235632, 2794540, 3193760, 3912356, 4471264, 4890445, 5589080, 7824712, 9780890, 11178160, 15649424, 19561780, 22356320, 31298848, 39123560, 78247120, 156494240]

約数ペア:

[(1, 156494240), (2, 78247120), (4, 39123560), (5, 31298848), (7, 22356320), (8, 19561780), (10, 15649424), (14, 11178160), (16, 9780890), (20, 7824712), (28, 5589080), (32, 4890445), (35, 4471264), (40, 3912356), (49, 3193760), (56, 2794540), (70, 2235632), (80, 1956178), (98, 1596880), (112, 1397270), (140, 1117816), (160, 978089), (196, 798440), (224, 698635), (245, 638752), (280, 558908), (392, 399220), (490, 319376), (560, 279454), (784, 199610), (980, 159688), (1120, 139727), (1568, 99805), (1960, 79844), (3920, 39922), (7840, 19961)]