25006520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 73405440

約数和(自身を除く): 48398920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 280, 308, 322, 353, 385, 440, 460, 506, 616, 644, 706, 770, 805, 920, 1012, 1265, 1288, 1412, 1540, 1610, 1765, 1771, 2024, 2471, 2530, 2824, 3080, 3220, 3530, 3542, 3883, 4942, 5060, 6440, 7060, 7084, 7766, 8119, 8855, 9884, 10120, 12355, 14120, 14168, 15532, 16238, 17710, 19415, 19768, 24710, 27181, 31064, 32476, 35420, 38830, 40595, 49420, 54362, 56833, 64952, 70840, 77660, 81190, 89309, 98840, 108724, 113666, 135905, 155320, 162380, 178618, 217448, 227332, 271810, 284165, 324760, 357236, 446545, 454664, 543620, 568330, 625163, 714472, 893090, 1087240, 1136660, 1250326, 1786180, 2273320, 2500652, 3125815, 3572360, 5001304, 6251630, 12503260, 25006520]

約数ペア:

[(1, 25006520), (2, 12503260), (4, 6251630), (5, 5001304), (7, 3572360), (8, 3125815), (10, 2500652), (11, 2273320), (14, 1786180), (20, 1250326), (22, 1136660), (23, 1087240), (28, 893090), (35, 714472), (40, 625163), (44, 568330), (46, 543620), (55, 454664), (56, 446545), (70, 357236), (77, 324760), (88, 284165), (92, 271810), (110, 227332), (115, 217448), (140, 178618), (154, 162380), (161, 155320), (184, 135905), (220, 113666), (230, 108724), (253, 98840), (280, 89309), (308, 81190), (322, 77660), (353, 70840), (385, 64952), (440, 56833), (460, 54362), (506, 49420), (616, 40595), (644, 38830), (706, 35420), (770, 32476), (805, 31064), (920, 27181), (1012, 24710), (1265, 19768), (1288, 19415), (1412, 17710), (1540, 16238), (1610, 15532), (1765, 14168), (1771, 14120), (2024, 12355), (2471, 10120), (2530, 9884), (2824, 8855), (3080, 8119), (3220, 7766), (3530, 7084), (3542, 7060), (3883, 6440), (4942, 5060)]