1288331720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2477561}}^1$

素因数の和:2477585

約数の個数: 32

約数和(自身を含む): 3121728120

約数和(自身を除く): 1833396400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2477561, 4955122, 9910244, 12387805, 19820488, 24775610, 32208293, 49551220, 64416586, 99102440, 128833172, 161041465, 257666344, 322082930, 644165860, 1288331720]

約数ペア:

[(1, 1288331720), (2, 644165860), (4, 322082930), (5, 257666344), (8, 161041465), (10, 128833172), (13, 99102440), (20, 64416586), (26, 49551220), (40, 32208293), (52, 24775610), (65, 19820488), (104, 12387805), (130, 9910244), (260, 4955122), (520, 2477561)]