18874625

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 30730752

約数和(自身を除く): 11856127

約数列:

[1, 5, 7, 11, 25, 35, 37, 53, 55, 77, 125, 175, 185, 259, 265, 275, 371, 385, 407, 583, 875, 925, 1295, 1325, 1375, 1855, 1925, 1961, 2035, 2849, 2915, 4081, 4625, 6475, 6625, 9275, 9625, 9805, 10175, 13727, 14245, 14575, 20405, 21571, 32375, 46375, 49025, 50875, 68635, 71225, 72875, 102025, 107855, 150997, 245125, 343175, 356125, 510125, 539275, 754985, 1715875, 2696375, 3774925, 18874625]

約数ペア:

[(1, 18874625), (5, 3774925), (7, 2696375), (11, 1715875), (25, 754985), (35, 539275), (37, 510125), (53, 356125), (55, 343175), (77, 245125), (125, 150997), (175, 107855), (185, 102025), (259, 72875), (265, 71225), (275, 68635), (371, 50875), (385, 49025), (407, 46375), (583, 32375), (875, 21571), (925, 20405), (1295, 14575), (1325, 14245), (1375, 13727), (1855, 10175), (1925, 9805), (1961, 9625), (2035, 9275), (2849, 6625), (2915, 6475), (4081, 4625)]