25421960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 59713200

約数和(自身を除く): 34291240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 148, 178, 185, 193, 296, 356, 370, 386, 445, 712, 740, 772, 890, 965, 1480, 1544, 1780, 1930, 3293, 3560, 3860, 6586, 7141, 7720, 13172, 14282, 16465, 17177, 26344, 28564, 32930, 34354, 35705, 57128, 65860, 68708, 71410, 85885, 131720, 137416, 142820, 171770, 285640, 343540, 635549, 687080, 1271098, 2542196, 3177745, 5084392, 6355490, 12710980, 25421960]

約数ペア:

[(1, 25421960), (2, 12710980), (4, 6355490), (5, 5084392), (8, 3177745), (10, 2542196), (20, 1271098), (37, 687080), (40, 635549), (74, 343540), (89, 285640), (148, 171770), (178, 142820), (185, 137416), (193, 131720), (296, 85885), (356, 71410), (370, 68708), (386, 65860), (445, 57128), (712, 35705), (740, 34354), (772, 32930), (890, 28564), (965, 26344), (1480, 17177), (1544, 16465), (1780, 14282), (1930, 13172), (3293, 7720), (3560, 7141), (3860, 6586)]