80870878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^2$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 145635840

約数和(自身を除く): 64764962

約数列:

[1, 2, 11, 19, 22, 31, 38, 62, 79, 158, 209, 341, 418, 589, 682, 869, 1178, 1501, 1738, 2449, 3002, 4898, 6241, 6479, 12482, 12958, 16511, 26939, 33022, 46531, 53878, 68651, 93062, 118579, 137302, 193471, 237158, 386942, 511841, 1023682, 1304369, 2128181, 2608738, 3675949, 4256362, 7351898, 40435439, 80870878]

約数ペア:

[(1, 80870878), (2, 40435439), (11, 7351898), (19, 4256362), (22, 3675949), (31, 2608738), (38, 2128181), (62, 1304369), (79, 1023682), (158, 511841), (209, 386942), (341, 237158), (418, 193471), (589, 137302), (682, 118579), (869, 93062), (1178, 68651), (1501, 53878), (1738, 46531), (2449, 33022), (3002, 26939), (4898, 16511), (6241, 12958), (6479, 12482)]