78124865

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 123721920

約数和(自身を除く): 45597055

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 637, 665, 931, 1235, 1291, 1729, 3185, 4655, 6455, 8645, 9037, 12103, 16783, 24529, 45185, 60515, 63259, 83915, 117481, 122645, 171703, 316295, 318877, 587405, 822367, 858515, 1201921, 1594385, 2232139, 4111835, 6009605, 11160695, 15624973, 78124865]

約数ペア:

[(1, 78124865), (5, 15624973), (7, 11160695), (13, 6009605), (19, 4111835), (35, 2232139), (49, 1594385), (65, 1201921), (91, 858515), (95, 822367), (133, 587405), (245, 318877), (247, 316295), (455, 171703), (637, 122645), (665, 117481), (931, 83915), (1235, 63259), (1291, 60515), (1729, 45185), (3185, 24529), (4655, 16783), (6455, 12103), (8645, 9037)]