19890810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7621}}^1$

素因数の和:7663

約数の個数: 48

約数和(自身を含む): 53506440

約数和(自身を除く): 33615630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 7621, 15242, 22863, 38105, 45726, 68589, 76210, 114315, 137178, 221009, 228630, 342945, 442018, 663027, 685890, 1105045, 1326054, 1989081, 2210090, 3315135, 3978162, 6630270, 9945405, 19890810]

約数ペア:

[(1, 19890810), (2, 9945405), (3, 6630270), (5, 3978162), (6, 3315135), (9, 2210090), (10, 1989081), (15, 1326054), (18, 1105045), (29, 685890), (30, 663027), (45, 442018), (58, 342945), (87, 228630), (90, 221009), (145, 137178), (174, 114315), (261, 76210), (290, 68589), (435, 45726), (522, 38105), (870, 22863), (1305, 15242), (2610, 7621)]