71328725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 100399824

約数和(自身を除く): 29071099

約数列:

[1, 5, 13, 25, 41, 53, 65, 101, 205, 265, 325, 505, 533, 689, 1025, 1313, 1325, 2173, 2525, 2665, 3445, 4141, 5353, 6565, 10865, 13325, 17225, 20705, 26765, 28249, 32825, 53833, 54325, 69589, 103525, 133825, 141245, 219473, 269165, 347945, 706225, 1097365, 1345825, 1739725, 2853149, 5486825, 14265745, 71328725]

約数ペア:

[(1, 71328725), (5, 14265745), (13, 5486825), (25, 2853149), (41, 1739725), (53, 1345825), (65, 1097365), (101, 706225), (205, 347945), (265, 269165), (325, 219473), (505, 141245), (533, 133825), (689, 103525), (1025, 69589), (1313, 54325), (1325, 53833), (2173, 32825), (2525, 28249), (2665, 26765), (3445, 20705), (4141, 17225), (5353, 13325), (6565, 10865)]