217658545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 310915584

約数和(自身を除く): 93257039

約数列:

[1, 5, 13, 23, 41, 53, 65, 67, 115, 205, 265, 299, 335, 533, 689, 871, 943, 1219, 1495, 1541, 2173, 2665, 2747, 3445, 3551, 4355, 4715, 6095, 7705, 10865, 12259, 13735, 15847, 17755, 20033, 28249, 35711, 46163, 49979, 61295, 63181, 79235, 81673, 100165, 141245, 145591, 178555, 230815, 249895, 315905, 408365, 649727, 727955, 821353, 1061749, 1892683, 3248635, 3348593, 4106765, 5308745, 9463415, 16742965, 43531709, 217658545]

約数ペア:

[(1, 217658545), (5, 43531709), (13, 16742965), (23, 9463415), (41, 5308745), (53, 4106765), (65, 3348593), (67, 3248635), (115, 1892683), (205, 1061749), (265, 821353), (299, 727955), (335, 649727), (533, 408365), (689, 315905), (871, 249895), (943, 230815), (1219, 178555), (1495, 145591), (1541, 141245), (2173, 100165), (2665, 81673), (2747, 79235), (3445, 63181), (3551, 61295), (4355, 49979), (4715, 46163), (6095, 35711), (7705, 28249), (10865, 20033), (12259, 17755), (13735, 15847)]