263485120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26561}}^1$

素因数の和:26609

約数の個数: 56

約数和(自身を含む): 647687808

約数和(自身を除く): 384202688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 26561, 53122, 106244, 132805, 212488, 265610, 424976, 531220, 823391, 849952, 1062440, 1646782, 1699904, 2124880, 3293564, 4116955, 4249760, 6587128, 8233910, 8499520, 13174256, 16467820, 26348512, 32935640, 52697024, 65871280, 131742560, 263485120]

約数ペア:

[(1, 263485120), (2, 131742560), (4, 65871280), (5, 52697024), (8, 32935640), (10, 26348512), (16, 16467820), (20, 13174256), (31, 8499520), (32, 8233910), (40, 6587128), (62, 4249760), (64, 4116955), (80, 3293564), (124, 2124880), (155, 1699904), (160, 1646782), (248, 1062440), (310, 849952), (320, 823391), (496, 531220), (620, 424976), (992, 265610), (1240, 212488), (1984, 132805), (2480, 106244), (4960, 53122), (9920, 26561)]