180810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{41}}^1$

素因数の和:68

約数の個数: 72

約数和(自身を含む): 560196

約数和(自身を除く): 379386

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 41, 42, 45, 49, 63, 70, 82, 90, 98, 105, 123, 126, 147, 205, 210, 245, 246, 287, 294, 315, 369, 410, 441, 490, 574, 615, 630, 735, 738, 861, 882, 1230, 1435, 1470, 1722, 1845, 2009, 2205, 2583, 2870, 3690, 4018, 4305, 4410, 5166, 6027, 8610, 10045, 12054, 12915, 18081, 20090, 25830, 30135, 36162, 60270, 90405, 180810]

約数ペア:

[(1, 180810), (2, 90405), (3, 60270), (5, 36162), (6, 30135), (7, 25830), (9, 20090), (10, 18081), (14, 12915), (15, 12054), (18, 10045), (21, 8610), (30, 6027), (35, 5166), (41, 4410), (42, 4305), (45, 4018), (49, 3690), (63, 2870), (70, 2583), (82, 2205), (90, 2009), (98, 1845), (105, 1722), (123, 1470), (126, 1435), (147, 1230), (205, 882), (210, 861), (245, 738), (246, 735), (287, 630), (294, 615), (315, 574), (369, 490), (410, 441)]