19136975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 28685664

約数和(自身を除く): 9548689

約数列:

[1, 5, 11, 13, 25, 53, 55, 65, 101, 143, 265, 275, 325, 505, 583, 689, 715, 1111, 1313, 1325, 2525, 2915, 3445, 3575, 5353, 5555, 6565, 7579, 14443, 14575, 17225, 26765, 27775, 32825, 37895, 58883, 69589, 72215, 133825, 189475, 294415, 347945, 361075, 765479, 1472075, 1739725, 3827395, 19136975]

約数ペア:

[(1, 19136975), (5, 3827395), (11, 1739725), (13, 1472075), (25, 765479), (53, 361075), (55, 347945), (65, 294415), (101, 189475), (143, 133825), (265, 72215), (275, 69589), (325, 58883), (505, 37895), (583, 32825), (689, 27775), (715, 26765), (1111, 17225), (1313, 14575), (1325, 14443), (2525, 7579), (2915, 6565), (3445, 5555), (3575, 5353)]