12997880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 34015680

約数和(自身を除く): 21017800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 761, 854, 1220, 1522, 1708, 2135, 2440, 3044, 3416, 3805, 4270, 5327, 6088, 7610, 8540, 10654, 15220, 17080, 21308, 26635, 30440, 42616, 46421, 53270, 92842, 106540, 185684, 213080, 232105, 324947, 371368, 464210, 649894, 928420, 1299788, 1624735, 1856840, 2599576, 3249470, 6498940, 12997880]

約数ペア:

[(1, 12997880), (2, 6498940), (4, 3249470), (5, 2599576), (7, 1856840), (8, 1624735), (10, 1299788), (14, 928420), (20, 649894), (28, 464210), (35, 371368), (40, 324947), (56, 232105), (61, 213080), (70, 185684), (122, 106540), (140, 92842), (244, 53270), (280, 46421), (305, 42616), (427, 30440), (488, 26635), (610, 21308), (761, 17080), (854, 15220), (1220, 10654), (1522, 8540), (1708, 7610), (2135, 6088), (2440, 5327), (3044, 4270), (3416, 3805)]