78248240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139729}}^1$

素因数の和:139749

約数の個数: 40

約数和(自身を含む): 207918240

約数和(自身を除く): 129670000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139729, 279458, 558916, 698645, 978103, 1117832, 1397290, 1956206, 2235664, 2794580, 3912412, 4890515, 5589160, 7824824, 9781030, 11178320, 15649648, 19562060, 39124120, 78248240]

約数ペア:

[(1, 78248240), (2, 39124120), (4, 19562060), (5, 15649648), (7, 11178320), (8, 9781030), (10, 7824824), (14, 5589160), (16, 4890515), (20, 3912412), (28, 2794580), (35, 2235664), (40, 1956206), (56, 1397290), (70, 1117832), (80, 978103), (112, 698645), (140, 558916), (280, 279458), (560, 139729)]