39977925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 71953728

約数和(自身を除く): 31975803

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 131, 195, 313, 325, 393, 655, 939, 975, 1565, 1703, 1965, 3275, 4069, 4695, 5109, 7825, 8515, 9825, 12207, 20345, 23475, 25545, 41003, 42575, 61035, 101725, 123009, 127725, 205015, 305175, 533039, 615045, 1025075, 1599117, 2665195, 3075225, 7995585, 13325975, 39977925]

約数ペア:

[(1, 39977925), (3, 13325975), (5, 7995585), (13, 3075225), (15, 2665195), (25, 1599117), (39, 1025075), (65, 615045), (75, 533039), (131, 305175), (195, 205015), (313, 127725), (325, 123009), (393, 101725), (655, 61035), (939, 42575), (975, 41003), (1565, 25545), (1703, 23475), (1965, 20345), (3275, 12207), (4069, 9825), (4695, 8515), (5109, 7825)]