87680725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 126866880

約数和(自身を除く): 39186155

約数列:

[1, 5, 11, 19, 25, 55, 95, 97, 173, 209, 275, 475, 485, 865, 1045, 1067, 1843, 1903, 2425, 3287, 4325, 5225, 5335, 9215, 9515, 16435, 16781, 20273, 26675, 36157, 46075, 47575, 82175, 83905, 101365, 180785, 184591, 318839, 419525, 506825, 903925, 922955, 1594195, 3507229, 4614775, 7970975, 17536145, 87680725]

約数ペア:

[(1, 87680725), (5, 17536145), (11, 7970975), (19, 4614775), (25, 3507229), (55, 1594195), (95, 922955), (97, 903925), (173, 506825), (209, 419525), (275, 318839), (475, 184591), (485, 180785), (865, 101365), (1045, 83905), (1067, 82175), (1843, 47575), (1903, 46075), (2425, 36157), (3287, 26675), (4325, 20273), (5225, 16781), (5335, 16435), (9215, 9515)]