257707656

素因数分解:

$2^3\times 3^4\times {\mathrm{397697}}^1$

素因数の和:397715

約数の個数: 40

約数和(自身を含む): 721821870

約数和(自身を除く): 464114214

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 397697, 795394, 1193091, 1590788, 2386182, 3181576, 3579273, 4772364, 7158546, 9544728, 10737819, 14317092, 21475638, 28634184, 32213457, 42951276, 64426914, 85902552, 128853828, 257707656]

約数ペア:

[(1, 257707656), (2, 128853828), (3, 85902552), (4, 64426914), (6, 42951276), (8, 32213457), (9, 28634184), (12, 21475638), (18, 14317092), (24, 10737819), (27, 9544728), (36, 7158546), (54, 4772364), (72, 3579273), (81, 3181576), (108, 2386182), (162, 1590788), (216, 1193091), (324, 795394), (648, 397697)]