65871280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26561}}^1$

素因数の和:26605

約数の個数: 40

約数和(自身を含む): 158097024

約数和(自身を除く): 92225744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26561, 53122, 106244, 132805, 212488, 265610, 424976, 531220, 823391, 1062440, 1646782, 2124880, 3293564, 4116955, 6587128, 8233910, 13174256, 16467820, 32935640, 65871280]

約数ペア:

[(1, 65871280), (2, 32935640), (4, 16467820), (5, 13174256), (8, 8233910), (10, 6587128), (16, 4116955), (20, 3293564), (31, 2124880), (40, 1646782), (62, 1062440), (80, 823391), (124, 531220), (155, 424976), (248, 265610), (310, 212488), (496, 132805), (620, 106244), (1240, 53122), (2480, 26561)]