19895265

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17844255

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 479, 585, 639, 923, 1065, 1437, 2395, 2769, 3195, 4311, 4615, 6227, 7185, 8307, 13845, 18681, 21555, 31135, 34009, 41535, 56043, 93405, 102027, 170045, 280215, 306081, 442117, 510135, 1326351, 1530405, 2210585, 3979053, 6631755, 19895265]

約数ペア:

[(1, 19895265), (3, 6631755), (5, 3979053), (9, 2210585), (13, 1530405), (15, 1326351), (39, 510135), (45, 442117), (65, 306081), (71, 280215), (117, 170045), (195, 102027), (213, 93405), (355, 56043), (479, 41535), (585, 34009), (639, 31135), (923, 21555), (1065, 18681), (1437, 13845), (2395, 8307), (2769, 7185), (3195, 6227), (4311, 4615)]