68947960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 164397600

約数和(自身を除く): 95449640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 257, 353, 380, 514, 706, 760, 1028, 1285, 1412, 1765, 2056, 2570, 2824, 3530, 4883, 5140, 6707, 7060, 9766, 10280, 13414, 14120, 19532, 24415, 26828, 33535, 39064, 48830, 53656, 67070, 90721, 97660, 134140, 181442, 195320, 268280, 362884, 453605, 725768, 907210, 1723699, 1814420, 3447398, 3628840, 6894796, 8618495, 13789592, 17236990, 34473980, 68947960]

約数ペア:

[(1, 68947960), (2, 34473980), (4, 17236990), (5, 13789592), (8, 8618495), (10, 6894796), (19, 3628840), (20, 3447398), (38, 1814420), (40, 1723699), (76, 907210), (95, 725768), (152, 453605), (190, 362884), (257, 268280), (353, 195320), (380, 181442), (514, 134140), (706, 97660), (760, 90721), (1028, 67070), (1285, 53656), (1412, 48830), (1765, 39064), (2056, 33535), (2570, 26828), (2824, 24415), (3530, 19532), (4883, 14120), (5140, 13414), (6707, 10280), (7060, 9766)]