260472870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{643}}^2$

素因数の和:1306

約数の個数: 72

約数和(自身を含む): 775182096

約数和(自身を除く): 514709226

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 643, 1286, 1929, 3215, 3858, 4501, 5787, 6430, 9002, 9645, 11574, 13503, 19290, 22505, 27006, 28935, 40509, 45010, 57870, 67515, 81018, 135030, 202545, 405090, 413449, 826898, 1240347, 2067245, 2480694, 2894143, 3721041, 4134490, 5788286, 6201735, 7442082, 8682429, 12403470, 14470715, 17364858, 18605205, 26047287, 28941430, 37210410, 43412145, 52094574, 86824290, 130236435, 260472870]

約数ペア:

[(1, 260472870), (2, 130236435), (3, 86824290), (5, 52094574), (6, 43412145), (7, 37210410), (9, 28941430), (10, 26047287), (14, 18605205), (15, 17364858), (18, 14470715), (21, 12403470), (30, 8682429), (35, 7442082), (42, 6201735), (45, 5788286), (63, 4134490), (70, 3721041), (90, 2894143), (105, 2480694), (126, 2067245), (210, 1240347), (315, 826898), (630, 413449), (643, 405090), (1286, 202545), (1929, 135030), (3215, 81018), (3858, 67515), (4501, 57870), (5787, 45010), (6430, 40509), (9002, 28935), (9645, 27006), (11574, 22505), (13503, 19290)]