39918975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 70709760

約数和(自身を除く): 30790785

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 131, 239, 255, 393, 425, 655, 717, 1195, 1275, 1965, 2227, 3275, 3585, 4063, 5975, 6681, 9825, 11135, 12189, 17925, 20315, 31309, 33405, 55675, 60945, 93927, 101575, 156545, 167025, 304725, 469635, 532253, 782725, 1596759, 2348175, 2661265, 7983795, 13306325, 39918975]

約数ペア:

[(1, 39918975), (3, 13306325), (5, 7983795), (15, 2661265), (17, 2348175), (25, 1596759), (51, 782725), (75, 532253), (85, 469635), (131, 304725), (239, 167025), (255, 156545), (393, 101575), (425, 93927), (655, 60945), (717, 55675), (1195, 33405), (1275, 31309), (1965, 20315), (2227, 17925), (3275, 12189), (3585, 11135), (4063, 9825), (5975, 6681)]