657693790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2141}}^1$

素因数の和:2317

約数の個数: 64

約数和(自身を含む): 1360255680

約数和(自身を除く): 702561890

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 139, 170, 221, 278, 442, 695, 1105, 1390, 1807, 2141, 2210, 2363, 3614, 4282, 4726, 9035, 10705, 11815, 18070, 21410, 23630, 27833, 30719, 36397, 55666, 61438, 72794, 139165, 153595, 181985, 278330, 297599, 307190, 363970, 473161, 595198, 946322, 1487995, 2365805, 2975990, 3868787, 4731610, 5059183, 7737574, 10118366, 19343935, 25295915, 38687870, 50591830, 65769379, 131538758, 328846895, 657693790]

約数ペア:

[(1, 657693790), (2, 328846895), (5, 131538758), (10, 65769379), (13, 50591830), (17, 38687870), (26, 25295915), (34, 19343935), (65, 10118366), (85, 7737574), (130, 5059183), (139, 4731610), (170, 3868787), (221, 2975990), (278, 2365805), (442, 1487995), (695, 946322), (1105, 595198), (1390, 473161), (1807, 363970), (2141, 307190), (2210, 297599), (2363, 278330), (3614, 181985), (4282, 153595), (4726, 139165), (9035, 72794), (10705, 61438), (11815, 55666), (18070, 36397), (21410, 30719), (23630, 27833)]