27831975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 21664857

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 83, 85, 249, 255, 263, 415, 425, 789, 1245, 1275, 1315, 1411, 2075, 3945, 4233, 4471, 6225, 6575, 7055, 13413, 19725, 21165, 21829, 22355, 35275, 65487, 67065, 105825, 109145, 111775, 327435, 335325, 371093, 545725, 1113279, 1637175, 1855465, 5566395, 9277325, 27831975]

約数ペア:

[(1, 27831975), (3, 9277325), (5, 5566395), (15, 1855465), (17, 1637175), (25, 1113279), (51, 545725), (75, 371093), (83, 335325), (85, 327435), (249, 111775), (255, 109145), (263, 105825), (415, 67065), (425, 65487), (789, 35275), (1245, 22355), (1275, 21829), (1315, 21165), (1411, 19725), (2075, 13413), (3945, 7055), (4233, 6575), (4471, 6225)]