81260235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4229}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 163650240

約数和(自身を除く): 82390005

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 1281, 2135, 2745, 3843, 4229, 6405, 12687, 19215, 21145, 29603, 38061, 63435, 88809, 148015, 190305, 257969, 266427, 444045, 773907, 1289845, 1332135, 1805783, 2321721, 3869535, 5417349, 9028915, 11608605, 16252047, 27086745, 81260235]

約数ペア:

[(1, 81260235), (3, 27086745), (5, 16252047), (7, 11608605), (9, 9028915), (15, 5417349), (21, 3869535), (35, 2321721), (45, 1805783), (61, 1332135), (63, 1289845), (105, 773907), (183, 444045), (305, 266427), (315, 257969), (427, 190305), (549, 148015), (915, 88809), (1281, 63435), (2135, 38061), (2745, 29603), (3843, 21145), (4229, 19215), (6405, 12687)]