78882020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{10631}}^1$

素因数の和:10700

約数の個数: 48

約数和(自身を含む): 192907008

約数和(自身を除く): 114024988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 10631, 21262, 42524, 53155, 74417, 106310, 148834, 212620, 297668, 372085, 563443, 744170, 1126886, 1488340, 2253772, 2817215, 3944101, 5634430, 7888202, 11268860, 15776404, 19720505, 39441010, 78882020]

約数ペア:

[(1, 78882020), (2, 39441010), (4, 19720505), (5, 15776404), (7, 11268860), (10, 7888202), (14, 5634430), (20, 3944101), (28, 2817215), (35, 2253772), (53, 1488340), (70, 1126886), (106, 744170), (140, 563443), (212, 372085), (265, 297668), (371, 212620), (530, 148834), (742, 106310), (1060, 74417), (1484, 53155), (1855, 42524), (3710, 21262), (7420, 10631)]